+/* A Bison parser, made by GNU Bison 2.3. */
-/* A Bison parser, made from ./parse.y
- by GNU Bison version 1.25
- */
-
-#define YYBISON 1 /* Identify Bison output. */
-
-#define IF 258
-#define THEN 259
-#define ELSE 260
-#define ELIF 261
-#define FI 262
-#define CASE 263
-#define ESAC 264
-#define FOR 265
-#define SELECT 266
-#define WHILE 267
-#define UNTIL 268
-#define DO 269
-#define DONE 270
-#define FUNCTION 271
-#define IN 272
-#define BANG 273
-#define TIME 274
-#define TIMEOPT 275
-#define WORD 276
-#define ASSIGNMENT_WORD 277
-#define NUMBER 278
-#define AND_AND 279
-#define OR_OR 280
-#define GREATER_GREATER 281
-#define LESS_LESS 282
-#define LESS_AND 283
-#define GREATER_AND 284
-#define SEMI_SEMI 285
-#define LESS_LESS_MINUS 286
-#define AND_GREATER 287
-#define LESS_GREATER 288
-#define GREATER_BAR 289
-#define yacc_EOF 290
-
-#line 21 "./parse.y"
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+ simplifying the original so-called "semantic" parser. */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+ infringing on user name space. This should be done even for local
+ variables, as they might otherwise be expanded by user macros.
+ There are some unavoidable exceptions within include files to
+ define necessary library symbols; they are noted "INFRINGES ON
+ USER NAME SPACE" below. */
+
+/* Identify Bison output. */
+#define YYBISON 1
+
+/* Bison version. */
+#define YYBISON_VERSION "2.3"
+
+/* Skeleton name. */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers. */
+#define YYPURE 0
+
+/* Using locations. */
+#define YYLSP_NEEDED 0
+
+
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ IF = 258,
+ THEN = 259,
+ ELSE = 260,
+ ELIF = 261,
+ FI = 262,
+ CASE = 263,
+ ESAC = 264,
+ FOR = 265,
+ SELECT = 266,
+ WHILE = 267,
+ UNTIL = 268,
+ DO = 269,
+ DONE = 270,
+ FUNCTION = 271,
+ COPROC = 272,
+ COND_START = 273,
+ COND_END = 274,
+ COND_ERROR = 275,
+ IN = 276,
+ BANG = 277,
+ TIME = 278,
+ TIMEOPT = 279,
+ WORD = 280,
+ ASSIGNMENT_WORD = 281,
+ NUMBER = 282,
+ ARITH_CMD = 283,
+ ARITH_FOR_EXPRS = 284,
+ COND_CMD = 285,
+ AND_AND = 286,
+ OR_OR = 287,
+ GREATER_GREATER = 288,
+ LESS_LESS = 289,
+ LESS_AND = 290,
+ LESS_LESS_LESS = 291,
+ GREATER_AND = 292,
+ SEMI_SEMI = 293,
+ SEMI_AND = 294,
+ SEMI_SEMI_AND = 295,
+ LESS_LESS_MINUS = 296,
+ AND_GREATER = 297,
+ AND_GREATER_GREATER = 298,
+ LESS_GREATER = 299,
+ GREATER_BAR = 300,
+ BAR_AND = 301,
+ yacc_EOF = 302
+ };
+#endif
+/* Tokens. */
+#define IF 258
+#define THEN 259
+#define ELSE 260
+#define ELIF 261
+#define FI 262
+#define CASE 263
+#define ESAC 264
+#define FOR 265
+#define SELECT 266
+#define WHILE 267
+#define UNTIL 268
+#define DO 269
+#define DONE 270
+#define FUNCTION 271
+#define COPROC 272
+#define COND_START 273
+#define COND_END 274
+#define COND_ERROR 275
+#define IN 276
+#define BANG 277
+#define TIME 278
+#define TIMEOPT 279
+#define WORD 280
+#define ASSIGNMENT_WORD 281
+#define NUMBER 282
+#define ARITH_CMD 283
+#define ARITH_FOR_EXPRS 284
+#define COND_CMD 285
+#define AND_AND 286
+#define OR_OR 287
+#define GREATER_GREATER 288
+#define LESS_LESS 289
+#define LESS_AND 290
+#define LESS_LESS_LESS 291
+#define GREATER_AND 292
+#define SEMI_SEMI 293
+#define SEMI_AND 294
+#define SEMI_SEMI_AND 295
+#define LESS_LESS_MINUS 296
+#define AND_GREATER 297
+#define AND_GREATER_GREATER 298
+#define LESS_GREATER 299
+#define GREATER_BAR 300
+#define BAR_AND 301
+#define yacc_EOF 302
+
+
+
+
+/* Copy the first part of user declarations. */
+#line 21 "/Users/chet/src/bash/src/parse.y"
#include "config.h"
#include "bashtypes.h"
#include "bashansi.h"
+#include "filecntl.h"
+
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#endif
#include <stdio.h>
+#include "chartypes.h"
#include <signal.h>
#include "memalloc.h"
+#include "bashintl.h"
+
+#define NEED_STRFTIME_DECL /* used in externs.h */
+
#include "shell.h"
#include "trap.h"
#include "flags.h"
#include "parser.h"
#include "mailcheck.h"
+#include "test.h"
+#include "builtins.h"
#include "builtins/common.h"
#include "builtins/builtext.h"
+#include "shmbutil.h"
+
#if defined (READLINE)
# include "bashline.h"
# include <readline/readline.h>
#if defined (ALIAS)
# include "alias.h"
+#else
+typedef void *alias_t;
#endif /* ALIAS */
#if defined (PROMPT_STRING_DECODE)
-#include <sys/param.h>
-#include <time.h>
-#include "maxpath.h"
+# ifndef _MINIX
+# include <sys/param.h>
+# endif
+# include <time.h>
+# if defined (TM_IN_SYS_TIME)
+# include <sys/types.h>
+# include <sys/time.h>
+# endif /* TM_IN_SYS_TIME */
+# include "maxpath.h"
#endif /* PROMPT_STRING_DECODE */
#define RE_READ_TOKEN -99
#define NO_EXPANSION -100
-#define YYDEBUG 0
+#ifdef DEBUG
+# define YYDEBUG 1
+#else
+# define YYDEBUG 0
+#endif
+
+#if defined (HANDLE_MULTIBYTE)
+# define last_shell_getc_is_singlebyte \
+ ((shell_input_line_index > 1) \
+ ? shell_input_line_property[shell_input_line_index - 1] \
+ : 1)
+# define MBTEST(x) ((x) && last_shell_getc_is_singlebyte)
+#else
+# define last_shell_getc_is_singlebyte 1
+# define MBTEST(x) ((x))
+#endif
+
+#if defined (EXTENDED_GLOB)
+extern int extended_glob;
+#endif
extern int eof_encountered;
extern int no_line_editing, running_under_emacs;
extern int current_command_number;
-extern int interactive, interactive_shell, login_shell;
-extern int sourcelevel;
+extern int sourcelevel, parse_and_execute_level;
extern int posixly_correct;
extern int last_command_exit_value;
-extern int interrupt_immediately;
extern char *shell_name, *current_host_name;
extern char *dist_version;
extern int patch_level;
-extern int dump_translatable_strings;
-extern Function *last_shell_builtin, *this_shell_builtin;
+extern int dump_translatable_strings, dump_po_strings;
+extern sh_builtin_func_t *last_shell_builtin, *this_shell_builtin;
#if defined (BUFFERED_INPUT)
extern int bash_input_fd_changed;
#endif
+extern int errno;
/* **************************************************************** */
/* */
/* "Forward" declarations */
/* */
/* **************************************************************** */
-static char *ansiexpand ();
-static char *localeexpand ();
-static int reserved_word_acceptable ();
-static int read_token ();
-static int yylex ();
-static int read_token_word ();
-static void discard_parser_constructs ();
+#ifdef DEBUG
+static void debug_parser __P((int));
+#endif
+
+static int yy_getc __P((void));
+static int yy_ungetc __P((int));
+
+#if defined (READLINE)
+static int yy_readline_get __P((void));
+static int yy_readline_unget __P((int));
+#endif
+
+static int yy_string_get __P((void));
+static int yy_string_unget __P((int));
+static void rewind_input_string __P((void));
+static int yy_stream_get __P((void));
+static int yy_stream_unget __P((int));
+
+static int shell_getc __P((int));
+static void shell_ungetc __P((int));
+static void discard_until __P((int));
+
+#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
+static void push_string __P((char *, int, alias_t *));
+static void pop_string __P((void));
+static void free_string_list __P((void));
+#endif
+
+static char *read_a_line __P((int));
+
+static int reserved_word_acceptable __P((int));
+static int yylex __P((void));
+static int alias_expand_token __P((char *));
+static int time_command_acceptable __P((void));
+static int special_case_tokens __P((char *));
+static int read_token __P((int));
+static char *parse_matched_pair __P((int, int, int, int *, int));
+static char *parse_comsub __P((int, int, int, int *, int));
+#if defined (ARRAY_VARS)
+static char *parse_compound_assignment __P((int *));
+#endif
+#if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND)
+static int parse_dparen __P((int));
+static int parse_arith_cmd __P((char **, int));
+#endif
+#if defined (COND_COMMAND)
+static void cond_error __P((void));
+static COND_COM *cond_expr __P((void));
+static COND_COM *cond_or __P((void));
+static COND_COM *cond_and __P((void));
+static COND_COM *cond_term __P((void));
+static int cond_skip_newlines __P((void));
+static COMMAND *parse_cond_command __P((void));
+#endif
+#if defined (ARRAY_VARS)
+static int token_is_assignment __P((char *, int));
+static int token_is_ident __P((char *, int));
+#endif
+static int read_token_word __P((int));
+static void discard_parser_constructs __P((int));
+
+static char *error_token_from_token __P((int));
+static char *error_token_from_text __P((void));
+static void print_offending_line __P((void));
+static void report_syntax_error __P((char *));
+
+static void handle_eof_input_unit __P((void));
+static void prompt_again __P((void));
+#if 0
+static void reset_readline_prompt __P((void));
+#endif
+static void print_prompt __P((void));
+
+#if defined (HANDLE_MULTIBYTE)
+static void set_line_mbstate __P((void));
+static char *shell_input_line_property = NULL;
+#else
+# define set_line_mbstate()
+#endif
+
+extern int yyerror __P((const char *));
-static void report_syntax_error ();
-static void handle_eof_input_unit ();
-static void prompt_again ();
-static void reset_readline_prompt ();
-static void print_prompt ();
+#ifdef DEBUG
+extern int yydebug;
+#endif
/* Default prompt strings */
char *primary_prompt = PPROMPT;
decode_prompt_string. */
int promptvars = 1;
+/* If non-zero, $'...' and $"..." are expanded when they appear within
+ a ${...} expansion, even when the expansion appears within double
+ quotes. */
+int extended_quote = 1;
+
/* The decoded prompt string. Used if READLINE is not defined or if
editing is turned off. Analogous to current_readline_prompt. */
static char *current_decoded_prompt;
/* The number of lines read from input while creating the current command. */
int current_command_line_count;
+/* The token that currently denotes the end of parse. */
+int shell_eof_token;
+
+/* The token currently being read. */
+int current_token;
+
/* Variables to manage the task of reading here documents, because we need to
defer the reading until after a complete command has been collected. */
static REDIRECT *redir_stack[10];
/* The line number in a script on which a function body starts. */
static int function_bstart;
+/* The line number in a script at which an arithmetic for command starts. */
+static int arith_for_lineno;
+
+/* The current parser state. */
+static int parser_state;
+
+/* The last read token, or NULL. read_token () uses this for context
+ checking. */
+static int last_read_token;
+
+/* The token read prior to last_read_token. */
+static int token_before_that;
+
+/* The token read prior to token_before_that. */
+static int two_tokens_ago;
+
+/* The line number in a script where the word in a `case WORD', `select WORD'
+ or `for WORD' begins. This is a nested command maximum, since the array
+ index is decremented after a case, select, or for command is parsed. */
+#define MAX_CASE_NEST 128
+static int word_lineno[MAX_CASE_NEST];
+static int word_top = -1;
+
+/* If non-zero, it is the token that we want read_token to return
+ regardless of what text is (or isn't) present to be read. This
+ is reset by read_token. If token_to_read == WORD or
+ ASSIGNMENT_WORD, yylval.word should be set to word_desc_to_read. */
+static int token_to_read;
+static WORD_DESC *word_desc_to_read;
+
static REDIRECTEE redir;
-#line 166 "./parse.y"
-typedef union {
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+#line 316 "/Users/chet/src/bash/src/parse.y"
+{
WORD_DESC *word; /* the word that we read. */
int number; /* the number that we read. */
WORD_LIST *word_list;
REDIRECT *redirect;
ELEMENT element;
PATTERN_LIST *pattern;
-} YYSTYPE;
-#include <stdio.h>
+}
+/* Line 187 of yacc.c. */
+#line 495 "y.tab.c"
+ YYSTYPE;
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+
+
+/* Copy the second part of user declarations. */
-#ifndef __cplusplus
-#ifndef __STDC__
-#define const
+
+/* Line 216 of yacc.c. */
+#line 508 "y.tab.c"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
#endif
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
-#define YYFINAL 263
-#define YYFLAG -32768
-#define YYNTBASE 47
-
-#define YYTRANSLATE(x) ((unsigned)(x) <= 290 ? yytranslate[x] : 78)
-
-static const char yytranslate[] = { 0,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 37,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 35, 2, 45,
- 46, 2, 2, 2, 42, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 36, 41,
- 2, 40, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 43, 39, 44, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 1, 2, 3, 4, 5,
- 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
- 26, 27, 28, 29, 30, 31, 32, 33, 34, 38
-};
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
+# endif
+#endif
-#if YYDEBUG != 0
-static const short yyprhs[] = { 0,
- 0, 3, 5, 8, 10, 12, 15, 18, 21, 25,
- 29, 32, 36, 39, 43, 46, 50, 53, 57, 60,
- 64, 67, 71, 74, 78, 81, 85, 88, 92, 95,
- 99, 102, 105, 109, 111, 113, 115, 117, 120, 122,
- 125, 127, 129, 132, 134, 136, 142, 148, 150, 152,
- 154, 156, 158, 165, 172, 180, 188, 199, 210, 217,
- 224, 232, 240, 251, 262, 269, 277, 284, 290, 297,
- 302, 306, 312, 320, 327, 331, 336, 343, 349, 351,
- 354, 359, 364, 370, 376, 379, 383, 385, 389, 392,
- 394, 397, 401, 405, 409, 414, 419, 424, 429, 434,
- 436, 438, 440, 442, 443, 446, 448, 451, 454, 459,
- 464, 468, 472, 474, 476, 479, 482, 486, 490, 495,
- 497, 499
-};
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
-static const short yyrhs[] = { 73,
- 37, 0, 37, 0, 1, 37, 0, 38, 0, 21,
- 0, 48, 21, 0, 40, 21, 0, 41, 21, 0,
- 23, 40, 21, 0, 23, 41, 21, 0, 26, 21,
- 0, 23, 26, 21, 0, 27, 21, 0, 23, 27,
- 21, 0, 28, 23, 0, 23, 28, 23, 0, 29,
- 23, 0, 23, 29, 23, 0, 28, 21, 0, 23,
- 28, 21, 0, 29, 21, 0, 23, 29, 21, 0,
- 31, 21, 0, 23, 31, 21, 0, 29, 42, 0,
- 23, 29, 42, 0, 28, 42, 0, 23, 28, 42,
- 0, 32, 21, 0, 23, 33, 21, 0, 33, 21,
- 0, 34, 21, 0, 23, 34, 21, 0, 21, 0,
- 22, 0, 49, 0, 49, 0, 51, 49, 0, 50,
- 0, 52, 50, 0, 52, 0, 54, 0, 54, 51,
- 0, 55, 0, 57, 0, 12, 68, 14, 68, 15,
- 0, 13, 68, 14, 68, 15, 0, 56, 0, 60,
- 0, 59, 0, 61, 0, 58, 0, 10, 21, 72,
- 14, 67, 15, 0, 10, 21, 72, 43, 67, 44,
- 0, 10, 21, 36, 72, 14, 67, 15, 0, 10,
- 21, 36, 72, 43, 67, 44, 0, 10, 21, 72,
- 17, 48, 71, 72, 14, 67, 15, 0, 10, 21,
- 72, 17, 48, 71, 72, 43, 67, 44, 0, 11,
- 21, 72, 14, 67, 15, 0, 11, 21, 72, 43,
- 67, 44, 0, 11, 21, 36, 72, 14, 67, 15,
- 0, 11, 21, 36, 72, 43, 67, 44, 0, 11,
- 21, 72, 17, 48, 71, 72, 14, 67, 15, 0,
- 11, 21, 72, 17, 48, 71, 72, 43, 67, 44,
- 0, 8, 21, 72, 17, 72, 9, 0, 8, 21,
- 72, 17, 65, 72, 9, 0, 8, 21, 72, 17,
- 63, 9, 0, 21, 45, 46, 72, 61, 0, 16,
- 21, 45, 46, 72, 61, 0, 16, 21, 72, 61,
- 0, 45, 68, 46, 0, 3, 68, 4, 68, 7,
- 0, 3, 68, 4, 68, 5, 68, 7, 0, 3,
- 68, 4, 68, 62, 7, 0, 43, 67, 44, 0,
- 6, 68, 4, 68, 0, 6, 68, 4, 68, 5,
- 68, 0, 6, 68, 4, 68, 62, 0, 64, 0,
- 65, 64, 0, 72, 66, 46, 68, 0, 72, 66,
- 46, 72, 0, 72, 45, 66, 46, 68, 0, 72,
- 45, 66, 46, 72, 0, 64, 30, 0, 65, 64,
- 30, 0, 21, 0, 66, 39, 21, 0, 72, 69,
- 0, 67, 0, 72, 70, 0, 70, 37, 72, 0,
- 70, 35, 72, 0, 70, 36, 72, 0, 70, 24,
- 72, 70, 0, 70, 25, 72, 70, 0, 70, 35,
- 72, 70, 0, 70, 36, 72, 70, 0, 70, 37,
- 72, 70, 0, 75, 0, 37, 0, 36, 0, 38,
- 0, 0, 72, 37, 0, 74, 0, 74, 35, 0,
- 74, 36, 0, 74, 24, 72, 74, 0, 74, 25,
- 72, 74, 0, 74, 35, 74, 0, 74, 36, 74,
- 0, 75, 0, 76, 0, 18, 76, 0, 77, 76,
- 0, 77, 18, 76, 0, 18, 77, 76, 0, 76,
- 39, 72, 76, 0, 53, 0, 19, 0, 19, 20,
- 0
-};
+#ifndef YY_
+# if YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
#endif
-#if YYDEBUG != 0
-static const short yyrline[] = { 0,
- 209, 218, 225, 240, 250, 252, 256, 261, 266, 271,
- 276, 281, 286, 292, 298, 303, 308, 313, 318, 323,
- 328, 333, 338, 345, 352, 357, 362, 367, 372, 377,
- 382, 387, 392, 399, 401, 403, 407, 411, 422, 424,
- 428, 430, 432, 461, 463, 465, 467, 469, 471, 473,
- 475, 477, 481, 483, 485, 487, 489, 491, 495, 499,
- 503, 507, 511, 515, 521, 523, 525, 529, 533, 536,
- 540, 544, 546, 548, 553, 557, 559, 561, 565, 566,
- 570, 572, 574, 576, 580, 581, 585, 587, 596, 604,
- 605, 611, 612, 619, 623, 625, 627, 634, 636, 638,
- 642, 643, 644, 647, 648, 657, 663, 672, 680, 682,
- 684, 691, 694, 698, 700, 705, 710, 715, 722, 725,
- 729, 731
-};
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int i)
+#else
+static int
+YYID (i)
+ int i;
+#endif
+{
+ return i;
+}
#endif
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# endif
+# endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+ /* Pacify GCC's `empty if-body' warning. */
+# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+# ifndef YYSTACK_ALLOC_MAXIMUM
+ /* The OS might guarantee only one guard page at the bottom of the stack,
+ and a page size can be as small as 4096 bytes. So we cannot safely
+ invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
+ to allow for a few compiler-allocated temporary stack slots. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+# endif
+# else
+# define YYSTACK_ALLOC YYMALLOC
+# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined _STDLIB_H \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# ifndef YYFREE
+# define YYFREE free
+# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
-#if YYDEBUG != 0 || defined (YYERROR_VERBOSE)
+#if (! defined yyoverflow \
+ && (! defined __cplusplus \
+ || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member. */
+union yyalloc
+{
+ yytype_int16 yyss;
+ YYSTYPE yyvs;
+ };
+
+/* The size of the maximum gap between one aligned stack and the next. */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+ N elements. */
+# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+ + YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(To, From, Count) \
+ __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# else
+# define YYCOPY(To, From, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (To)[yyi] = (From)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+
+/* Relocate STACK from its old location to the new one. The
+ local variables YYSIZE and YYSTACKSIZE give the old and new number of
+ elements in the stack, and YYPTR gives the new location of the
+ stack. Advance YYPTR to a properly aligned location for the next
+ stack. */
+# define YYSTACK_RELOCATE(Stack) \
+ do \
+ { \
+ YYSIZE_T yynewbytes; \
+ YYCOPY (&yyptr->Stack, Stack, yysize); \
+ Stack = &yyptr->Stack; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+ yyptr += yynewbytes / sizeof (*yyptr); \
+ } \
+ while (YYID (0))
-static const char * const yytname[] = { "$","error","$undefined.","IF","THEN",
-"ELSE","ELIF","FI","CASE","ESAC","FOR","SELECT","WHILE","UNTIL","DO","DONE",
-"FUNCTION","IN","BANG","TIME","TIMEOPT","WORD","ASSIGNMENT_WORD","NUMBER","AND_AND",
-"OR_OR","GREATER_GREATER","LESS_LESS","LESS_AND","GREATER_AND","SEMI_SEMI","LESS_LESS_MINUS",
-"AND_GREATER","LESS_GREATER","GREATER_BAR","'&'","';'","'\\n'","yacc_EOF","'|'",
-"'>'","'<'","'-'","'{'","'}'","'('","')'","inputunit","word_list","redirection",
-"simple_command_element","redirection_list","simple_command","command","shell_command",
-"for_command","select_command","case_command","function_def","subshell","if_command",
-"group_command","elif_clause","case_clause","pattern_list","case_clause_sequence",
-"pattern","list","compound_list","list0","list1","list_terminator","newline_list",
-"simple_list","simple_list1","pipeline_command","pipeline","timespec", NULL
-};
#endif
-static const short yyr1[] = { 0,
- 47, 47, 47, 47, 48, 48, 49, 49, 49, 49,
- 49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
- 49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
- 49, 49, 49, 50, 50, 50, 51, 51, 52, 52,
- 53, 53, 53, 54, 54, 54, 54, 54, 54, 54,
- 54, 54, 55, 55, 55, 55, 55, 55, 56, 56,
- 56, 56, 56, 56, 57, 57, 57, 58, 58, 58,
- 59, 60, 60, 60, 61, 62, 62, 62, 63, 63,
- 64, 64, 64, 64, 65, 65, 66, 66, 67, 68,
- 68, 69, 69, 69, 70, 70, 70, 70, 70, 70,
- 71, 71, 71, 72, 72, 73, 73, 73, 74, 74,
- 74, 74, 74, 75, 75, 75, 75, 75, 76, 76,
- 77, 77
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL 102
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST 728
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS 59
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS 38
+/* YYNRULES -- Number of rules. */
+#define YYNRULES 153
+/* YYNRULES -- Number of states. */
+#define YYNSTATES 319
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+#define YYUNDEFTOK 2
+#define YYMAXUTOK 302
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 49, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 47, 2,
+ 57, 58, 2, 2, 2, 54, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 48,
+ 53, 2, 52, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 55, 51, 56, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
+ 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 50
};
-static const short yyr2[] = { 0,
- 2, 1, 2, 1, 1, 2, 2, 2, 3, 3,
- 2, 3, 2, 3, 2, 3, 2, 3, 2, 3,
- 2, 3, 2, 3, 2, 3, 2, 3, 2, 3,
- 2, 2, 3, 1, 1, 1, 1, 2, 1, 2,
- 1, 1, 2, 1, 1, 5, 5, 1, 1, 1,
- 1, 1, 6, 6, 7, 7, 10, 10, 6, 6,
- 7, 7, 10, 10, 6, 7, 6, 5, 6, 4,
- 3, 5, 7, 6, 3, 4, 6, 5, 1, 2,
- 4, 4, 5, 5, 2, 3, 1, 3, 2, 1,
- 2, 3, 3, 3, 4, 4, 4, 4, 4, 1,
- 1, 1, 1, 0, 2, 1, 2, 2, 4, 4,
- 3, 3, 1, 1, 2, 2, 3, 3, 4, 1,
- 1, 2
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const yytype_uint16 yyprhs[] =
+{
+ 0, 0, 3, 6, 8, 11, 13, 15, 18, 21,
+ 24, 28, 32, 35, 39, 42, 46, 49, 53, 56,
+ 60, 63, 67, 70, 74, 77, 81, 84, 88, 91,
+ 95, 98, 102, 105, 108, 112, 115, 118, 122, 124,
+ 126, 128, 130, 133, 135, 138, 140, 142, 145, 147,
+ 149, 151, 153, 159, 165, 167, 169, 171, 173, 175,
+ 177, 179, 186, 193, 201, 209, 220, 231, 241, 251,
+ 259, 267, 273, 279, 286, 293, 301, 309, 320, 331,
+ 338, 346, 353, 359, 366, 371, 373, 376, 380, 383,
+ 387, 391, 396, 399, 405, 413, 420, 424, 426, 430,
+ 435, 442, 448, 450, 453, 458, 463, 469, 475, 478,
+ 482, 485, 489, 492, 496, 498, 502, 505, 507, 510,
+ 514, 518, 522, 527, 532, 537, 542, 547, 549, 551,
+ 553, 555, 557, 559, 560, 563, 565, 568, 571, 576,
+ 581, 585, 589, 591, 593, 596, 599, 603, 607, 610,
+ 615, 620, 622, 624
};
-static const short yydefact[] = { 0,
- 0, 104, 0, 0, 0, 104, 104, 0, 0, 121,
- 34, 35, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 2, 4, 0, 0, 104, 104, 36, 39, 41,
- 120, 42, 44, 48, 45, 52, 50, 49, 51, 0,
- 106, 113, 114, 0, 3, 90, 0, 0, 104, 104,
- 104, 0, 0, 104, 115, 0, 122, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 11, 13, 19,
- 15, 27, 21, 17, 25, 23, 29, 31, 32, 7,
- 8, 0, 0, 0, 34, 40, 37, 43, 1, 104,
- 104, 107, 108, 104, 0, 116, 104, 105, 89, 91,
- 100, 0, 104, 0, 104, 0, 104, 104, 0, 0,
- 118, 104, 12, 14, 20, 16, 28, 22, 18, 26,
- 24, 30, 33, 9, 10, 75, 0, 71, 38, 0,
- 0, 111, 112, 0, 117, 0, 104, 104, 104, 104,
- 104, 104, 0, 104, 0, 104, 0, 104, 0, 104,
- 0, 0, 104, 70, 0, 109, 110, 0, 0, 119,
- 104, 104, 72, 0, 0, 0, 93, 94, 92, 0,
- 79, 104, 0, 104, 104, 0, 5, 0, 0, 104,
- 104, 0, 0, 0, 46, 47, 0, 68, 0, 0,
- 74, 95, 96, 97, 98, 99, 67, 85, 80, 0,
- 65, 87, 0, 0, 0, 0, 53, 6, 102, 101,
- 103, 104, 54, 0, 0, 59, 104, 60, 69, 73,
- 104, 104, 104, 104, 86, 66, 0, 0, 104, 55,
- 56, 0, 61, 62, 0, 76, 0, 0, 0, 104,
- 88, 81, 82, 104, 104, 104, 104, 104, 78, 83,
- 84, 0, 0, 0, 0, 77, 57, 58, 63, 64,
- 0, 0, 0
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yytype_int8 yyrhs[] =
+{
+ 60, 0, -1, 92, 89, -1, 49, -1, 1, 49,
+ -1, 50, -1, 25, -1, 61, 25, -1, 52, 25,
+ -1, 53, 25, -1, 27, 52, 25, -1, 27, 53,
+ 25, -1, 33, 25, -1, 27, 33, 25, -1, 34,
+ 25, -1, 27, 34, 25, -1, 36, 25, -1, 27,
+ 36, 25, -1, 35, 27, -1, 27, 35, 27, -1,
+ 37, 27, -1, 27, 37, 27, -1, 35, 25, -1,
+ 27, 35, 25, -1, 37, 25, -1, 27, 37, 25,
+ -1, 41, 25, -1, 27, 41, 25, -1, 37, 54,
+ -1, 27, 37, 54, -1, 35, 54, -1, 27, 35,
+ 54, -1, 42, 25, -1, 43, 25, -1, 27, 44,
+ 25, -1, 44, 25, -1, 45, 25, -1, 27, 45,
+ 25, -1, 25, -1, 26, -1, 62, -1, 62, -1,
+ 64, 62, -1, 63, -1, 65, 63, -1, 65, -1,
+ 67, -1, 67, 64, -1, 72, -1, 75, -1, 68,
+ -1, 71, -1, 12, 86, 14, 86, 15, -1, 13,
+ 86, 14, 86, 15, -1, 70, -1, 76, -1, 74,
+ -1, 77, -1, 78, -1, 79, -1, 69, -1, 10,
+ 25, 91, 14, 86, 15, -1, 10, 25, 91, 55,
+ 86, 56, -1, 10, 25, 48, 91, 14, 86, 15,
+ -1, 10, 25, 48, 91, 55, 86, 56, -1, 10,
+ 25, 91, 21, 61, 90, 91, 14, 86, 15, -1,
+ 10, 25, 91, 21, 61, 90, 91, 55, 86, 56,
+ -1, 10, 25, 91, 21, 90, 91, 14, 86, 15,
+ -1, 10, 25, 91, 21, 90, 91, 55, 86, 56,
+ -1, 10, 29, 90, 91, 14, 86, 15, -1, 10,
+ 29, 90, 91, 55, 86, 56, -1, 10, 29, 14,
+ 86, 15, -1, 10, 29, 55, 86, 56, -1, 11,
+ 25, 91, 14, 85, 15, -1, 11, 25, 91, 55,
+ 85, 56, -1, 11, 25, 48, 91, 14, 85, 15,
+ -1, 11, 25, 48, 91, 55, 85, 56, -1, 11,
+ 25, 91, 21, 61, 90, 91, 14, 85, 15, -1,
+ 11, 25, 91, 21, 61, 90, 91, 55, 85, 56,
+ -1, 8, 25, 91, 21, 91, 9, -1, 8, 25,
+ 91, 21, 83, 91, 9, -1, 8, 25, 91, 21,
+ 81, 9, -1, 25, 57, 58, 91, 73, -1, 16,
+ 25, 57, 58, 91, 73, -1, 16, 25, 91, 73,
+ -1, 67, -1, 67, 64, -1, 57, 86, 58, -1,
+ 17, 67, -1, 17, 67, 64, -1, 17, 25, 67,
+ -1, 17, 25, 67, 64, -1, 17, 65, -1, 3,
+ 86, 4, 86, 7, -1, 3, 86, 4, 86, 5,
+ 86, 7, -1, 3, 86, 4, 86, 80, 7, -1,
+ 55, 86, 56, -1, 28, -1, 18, 30, 19, -1,
+ 6, 86, 4, 86, -1, 6, 86, 4, 86, 5,
+ 86, -1, 6, 86, 4, 86, 80, -1, 82, -1,
+ 83, 82, -1, 91, 84, 58, 86, -1, 91, 84,
+ 58, 91, -1, 91, 57, 84, 58, 86, -1, 91,
+ 57, 84, 58, 91, -1, 82, 38, -1, 83, 82,
+ 38, -1, 82, 39, -1, 83, 82, 39, -1, 82,
+ 40, -1, 83, 82, 40, -1, 25, -1, 84, 51,
+ 25, -1, 91, 87, -1, 85, -1, 91, 88, -1,
+ 88, 49, 91, -1, 88, 47, 91, -1, 88, 48,
+ 91, -1, 88, 31, 91, 88, -1, 88, 32, 91,
+ 88, -1, 88, 47, 91, 88, -1, 88, 48, 91,
+ 88, -1, 88, 49, 91, 88, -1, 94, -1, 49,
+ -1, 50, -1, 49, -1, 48, -1, 50, -1, -1,
+ 91, 49, -1, 93, -1, 93, 47, -1, 93, 48,
+ -1, 93, 31, 91, 93, -1, 93, 32, 91, 93,
+ -1, 93, 47, 93, -1, 93, 48, 93, -1, 94,
+ -1, 95, -1, 22, 95, -1, 96, 95, -1, 96,
+ 22, 95, -1, 22, 96, 95, -1, 96, 90, -1,
+ 95, 51, 91, 95, -1, 95, 46, 91, 95, -1,
+ 66, -1, 23, -1, 23, 24, -1
};
-static const short yydefgoto[] = { 261,
- 178, 28, 29, 88, 30, 31, 32, 33, 34, 35,
- 36, 37, 38, 39, 164, 170, 171, 172, 204, 46,
- 47, 99, 100, 212, 83, 40, 132, 101, 43, 44
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const yytype_uint16 yyrline[] =
+{
+ 0, 369, 369, 380, 389, 404, 414, 416, 420, 425,
+ 430, 435, 440, 445, 450, 456, 462, 467, 472, 477,
+ 482, 487, 492, 497, 502, 507, 512, 519, 526, 531,
+ 536, 541, 546, 551, 556, 561, 566, 571, 578, 580,
+ 582, 586, 590, 601, 603, 607, 609, 611, 627, 629,
+ 633, 635, 637, 639, 641, 643, 645, 647, 649, 651,
+ 653, 657, 662, 667, 672, 677, 682, 687, 692, 699,
+ 704, 709, 714, 721, 726, 731, 736, 741, 746, 753,
+ 758, 763, 770, 773, 776, 780, 782, 813, 820, 825,
+ 842, 847, 864, 871, 873, 875, 880, 884, 888, 892,
+ 894, 896, 900, 901, 905, 907, 909, 911, 915, 917,
+ 919, 921, 923, 925, 929, 931, 940, 948, 949, 955,
+ 956, 963, 967, 969, 971, 978, 980, 982, 986, 987,
+ 990, 992, 994, 998, 999, 1008, 1021, 1037, 1052, 1054,
+ 1056, 1063, 1066, 1070, 1072, 1078, 1084, 1090, 1096, 1116,
+ 1118, 1140, 1144, 1146
};
+#endif
-static const short yypact[] = { 246,
- -19,-32768, 8, 25, 29,-32768,-32768, 33, 354, 4,
- 34,-32768, 499, 46, 51, 32, 38, 56, 70, 72,
- 90,-32768,-32768, 97, 101,-32768,-32768,-32768,-32768, 161,
--32768, 483,-32768,-32768,-32768,-32768,-32768,-32768,-32768, 6,
- 139,-32768, 84, 390,-32768,-32768, 120, 282,-32768, 89,
- 94, 112, 117, 87, 84, 462,-32768, 96, 123, 127,
- 52, 55, 128, 129, 133, 137, 140,-32768,-32768,-32768,
--32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
--32768, 121, 282, 122,-32768,-32768,-32768, 483,-32768,-32768,
--32768, 318, 318,-32768, 462, 84,-32768,-32768,-32768, 92,
--32768, -10,-32768, 2,-32768, 14,-32768,-32768, 130, -28,
- 84,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
--32768,-32768,-32768,-32768,-32768,-32768, 92,-32768,-32768, 282,
- 282, 10, 10, 426, 84, 93,-32768,-32768,-32768,-32768,
--32768,-32768, 23,-32768, 148,-32768, 26,-32768, 148,-32768,
- 158, 164,-32768,-32768, -28,-32768,-32768, 318, 318, 84,
--32768,-32768,-32768, 178, 282, 282, 282, 282, 282, 177,
- 166,-32768, -7,-32768,-32768, 176,-32768, 83, 153,-32768,
--32768, 183, 83, 155,-32768,-32768, -28,-32768, 193, 199,
--32768,-32768,-32768, 57, 57, 57,-32768,-32768, 174, -1,
--32768,-32768, 184, -29, 191, 163,-32768,-32768,-32768,-32768,
--32768,-32768,-32768, 194, 167,-32768,-32768,-32768,-32768,-32768,
--32768,-32768,-32768,-32768,-32768,-32768, -13, 187,-32768,-32768,
--32768, 27,-32768,-32768, 28, 103, 282, 282, 282,-32768,
--32768,-32768, 282,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
- 282, 197, 169, 201, 170,-32768,-32768,-32768,-32768,-32768,
- 217, 218,-32768
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ "$end", "error", "$undefined", "IF", "THEN", "ELSE", "ELIF", "FI",
+ "CASE", "ESAC", "FOR", "SELECT", "WHILE", "UNTIL", "DO", "DONE",
+ "FUNCTION", "COPROC", "COND_START", "COND_END", "COND_ERROR", "IN",
+ "BANG", "TIME", "TIMEOPT", "WORD", "ASSIGNMENT_WORD", "NUMBER",
+ "ARITH_CMD", "ARITH_FOR_EXPRS", "COND_CMD", "AND_AND", "OR_OR",
+ "GREATER_GREATER", "LESS_LESS", "LESS_AND", "LESS_LESS_LESS",
+ "GREATER_AND", "SEMI_SEMI", "SEMI_AND", "SEMI_SEMI_AND",
+ "LESS_LESS_MINUS", "AND_GREATER", "AND_GREATER_GREATER", "LESS_GREATER",
+ "GREATER_BAR", "BAR_AND", "'&'", "';'", "'\\n'", "yacc_EOF", "'|'",
+ "'>'", "'<'", "'-'", "'{'", "'}'", "'('", "')'", "$accept", "inputunit",
+ "word_list", "redirection", "simple_command_element", "redirection_list",
+ "simple_command", "command", "shell_command", "for_command",
+ "arith_for_command", "select_command", "case_command", "function_def",
+ "function_body", "subshell", "coproc", "if_command", "group_command",
+ "arith_command", "cond_command", "elif_clause", "case_clause",
+ "pattern_list", "case_clause_sequence", "pattern", "list",
+ "compound_list", "list0", "list1", "simple_list_terminator",
+ "list_terminator", "newline_list", "simple_list", "simple_list1",
+ "pipeline_command", "pipeline", "timespec", 0
};
+#endif
-static const short yypgoto[] = {-32768,
- 74, -26, 195,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
--32768,-32768,-32768, -97, -12,-32768, 58,-32768, 30, -3,
- 5,-32768, -82, 45, -2,-32768, 3, 22, 12, 220
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+ token YYLEX-NUM. */
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
+ 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
+ 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
+ 285, 286, 287, 288, 289, 290, 291, 292, 293, 294,
+ 295, 296, 297, 298, 299, 300, 301, 38, 59, 10,
+ 302, 124, 62, 60, 45, 123, 125, 40, 41
};
+# endif
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const yytype_uint8 yyr1[] =
+{
+ 0, 59, 60, 60, 60, 60, 61, 61, 62, 62,
+ 62, 62, 62, 62, 62, 62, 62, 62, 62, 62,
+ 62, 62, 62, 62, 62, 62, 62, 62, 62, 62,
+ 62, 62, 62, 62, 62, 62, 62, 62, 63, 63,
+ 63, 64, 64, 65, 65, 66, 66, 66, 66, 66,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 68, 68, 68, 68, 68, 68, 68, 68, 69,
+ 69, 69, 69, 70, 70, 70, 70, 70, 70, 71,
+ 71, 71, 72, 72, 72, 73, 73, 74, 75, 75,
+ 75, 75, 75, 76, 76, 76, 77, 78, 79, 80,
+ 80, 80, 81, 81, 82, 82, 82, 82, 83, 83,
+ 83, 83, 83, 83, 84, 84, 85, 86, 86, 87,
+ 87, 87, 88, 88, 88, 88, 88, 88, 89, 89,
+ 90, 90, 90, 91, 91, 92, 92, 92, 93, 93,
+ 93, 93, 93, 94, 94, 94, 94, 94, 94, 95,
+ 95, 95, 96, 96
+};
-#define YYLAST 540
-
-
-static const short yytable[] = { 48,
- 127, 201, 41, 48, 48, 87, 142, 226, 98, 228,
- 52, 53, 154, 202, 26, 144, 229, 45, 145, 202,
- 55, 42, 82, 57, 48, 228, 98, 148, 49, 98,
- 149, 84, 240, 90, 91, 98, 174, 203, 98, 180,
- 244, 246, 89, 203, 146, 50, 102, 104, 106, 51,
- 98, 110, 70, 54, 71, 96, 150, 188, 73, 98,
- 74, 129, 98, 98, 98, 175, 68, 111, 181, 245,
- 247, 69, 115, 72, 116, 118, 76, 119, 58, 75,
- 137, 138, 192, 193, 194, 195, 196, 130, 131, 219,
- 77, 134, 78, 117, 48, 133, 120, 161, 162, 163,
- 143, 136, 147, 208, 48, 48, 135, 248, 162, 155,
- 79, 151, 152, 42, 42, 137, 138, 80, 209, 210,
- 211, 81, 94, 97, 103, 107, 139, 140, 141, 105,
- 108, 109, 156, 157, 165, 166, 167, 168, 169, 173,
- 176, 112, 179, 113, 182, 160, 184, 114, 121, 122,
- 187, 42, 42, 123, 194, 195, 196, 124, 48, 48,
- 125, 133, 90, 91, 126, 189, 190, 128, 177, 200,
- 205, 206, 185, 92, 93, 153, 214, 215, 186, 42,
- 42, 85, 12, 13, 191, 197, 14, 15, 16, 17,
- 207, 18, 19, 20, 21, 198, 213, 216, 218, 220,
- 24, 25, 221, 225, 202, 230, 231, 241, 233, 232,
- 234, 257, 258, 260, 235, 259, 262, 263, 48, 237,
- 238, 239, 183, 249, 86, 236, 243, 217, 56, 199,
- 0, 0, 227, 242, 0, 0, 0, 251, 0, 0,
- 252, 253, 254, 255, 250, 48, 1, 0, 2, 0,
- 0, 0, 256, 3, 0, 4, 5, 6, 7, 0,
- 0, 8, 0, 9, 10, 0, 11, 12, 13, 0,
- 0, 14, 15, 16, 17, 0, 18, 19, 20, 21,
- 0, 0, 22, 23, 2, 24, 25, 0, 26, 3,
- 27, 4, 5, 6, 7, 0, 0, 8, 0, 9,
- 10, 0, 11, 12, 13, 0, 0, 14, 15, 16,
- 17, 0, 18, 19, 20, 21, 0, 0, 98, 0,
- 2, 24, 25, 0, 26, 3, 27, 4, 5, 6,
- 7, 0, 0, 8, 0, 9, 10, 0, 11, 12,
- 13, 0, 0, 14, 15, 16, 17, 0, 18, 19,
- 20, 21, 0, 0, 0, 0, 2, 24, 25, 0,
- 26, 3, 27, 4, 5, 6, 7, 0, 0, 8,
- 0, 0, 10, 0, 11, 12, 13, 0, 0, 14,
- 15, 16, 17, 0, 18, 19, 20, 21, 0, 0,
- 0, 0, 2, 24, 25, 0, 26, 3, 27, 4,
- 5, 6, 7, 0, 0, 8, 0, 95, 0, 0,
- 11, 12, 13, 0, 0, 14, 15, 16, 17, 0,
- 18, 19, 20, 21, 0, 0, 0, 0, 2, 24,
- 25, 0, 26, 3, 27, 4, 5, 6, 7, 0,
- 0, 8, 0, 0, 0, 0, 11, 12, 13, 0,
- 0, 14, 15, 16, 17, 0, 18, 19, 20, 21,
- 0, 0, 98, 0, 2, 24, 25, 0, 26, 3,
- 27, 4, 5, 6, 7, 0, 0, 8, 0, 0,
- 0, 0, 11, 12, 13, 0, 0, 14, 15, 16,
- 17, 0, 18, 19, 20, 21, 0, 0, 0, 0,
- 0, 24, 25, 0, 26, 13, 27, 0, 14, 15,
- 16, 17, 0, 18, 19, 20, 21, 0, 0, 0,
- 0, 0, 24, 25, 59, 60, 61, 62, 0, 63,
- 0, 64, 65, 0, 0, 0, 0, 0, 66, 67
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 2, 1, 2, 1, 1, 2, 2, 2,
+ 3, 3, 2, 3, 2, 3, 2, 3, 2, 3,
+ 2, 3, 2, 3, 2, 3, 2, 3, 2, 3,
+ 2, 3, 2, 2, 3, 2, 2, 3, 1, 1,
+ 1, 1, 2, 1, 2, 1, 1, 2, 1, 1,
+ 1, 1, 5, 5, 1, 1, 1, 1, 1, 1,
+ 1, 6, 6, 7, 7, 10, 10, 9, 9, 7,
+ 7, 5, 5, 6, 6, 7, 7, 10, 10, 6,
+ 7, 6, 5, 6, 4, 1, 2, 3, 2, 3,
+ 3, 4, 2, 5, 7, 6, 3, 1, 3, 4,
+ 6, 5, 1, 2, 4, 4, 5, 5, 2, 3,
+ 2, 3, 2, 3, 1, 3, 2, 1, 2, 3,
+ 3, 3, 4, 4, 4, 4, 4, 1, 1, 1,
+ 1, 1, 1, 0, 2, 1, 2, 2, 4, 4,
+ 3, 3, 1, 1, 2, 2, 3, 3, 2, 4,
+ 4, 1, 1, 2
};
-static const short yycheck[] = { 2,
- 83, 9, 0, 6, 7, 32, 17, 9, 37, 39,
- 6, 7, 110, 21, 43, 14, 46, 37, 17, 21,
- 9, 0, 26, 20, 27, 39, 37, 14, 21, 37,
- 17, 27, 46, 24, 25, 37, 14, 45, 37, 14,
- 14, 14, 37, 45, 43, 21, 49, 50, 51, 21,
- 37, 54, 21, 21, 23, 44, 43, 155, 21, 37,
- 23, 88, 37, 37, 37, 43, 21, 56, 43, 43,
- 43, 21, 21, 42, 23, 21, 21, 23, 45, 42,
- 24, 25, 165, 166, 167, 168, 169, 90, 91, 187,
- 21, 94, 21, 42, 97, 93, 42, 5, 6, 7,
- 103, 97, 105, 21, 107, 108, 95, 5, 6, 112,
- 21, 107, 108, 92, 93, 24, 25, 21, 36, 37,
- 38, 21, 39, 4, 36, 14, 35, 36, 37, 36,
- 14, 45, 130, 131, 137, 138, 139, 140, 141, 142,
- 144, 46, 146, 21, 148, 134, 150, 21, 21, 21,
- 153, 130, 131, 21, 237, 238, 239, 21, 161, 162,
- 21, 159, 24, 25, 44, 161, 162, 46, 21, 172,
- 174, 175, 15, 35, 36, 46, 180, 181, 15, 158,
- 159, 21, 22, 23, 7, 9, 26, 27, 28, 29,
- 15, 31, 32, 33, 34, 30, 44, 15, 44, 7,
- 40, 41, 4, 30, 21, 15, 44, 21, 15, 212,
- 44, 15, 44, 44, 217, 15, 0, 0, 221, 222,
- 223, 224, 149, 236, 30, 221, 229, 183, 9, 172,
- -1, -1, 203, 229, -1, -1, -1, 240, -1, -1,
- 244, 245, 246, 247, 240, 248, 1, -1, 3, -1,
- -1, -1, 248, 8, -1, 10, 11, 12, 13, -1,
- -1, 16, -1, 18, 19, -1, 21, 22, 23, -1,
- -1, 26, 27, 28, 29, -1, 31, 32, 33, 34,
- -1, -1, 37, 38, 3, 40, 41, -1, 43, 8,
- 45, 10, 11, 12, 13, -1, -1, 16, -1, 18,
- 19, -1, 21, 22, 23, -1, -1, 26, 27, 28,
- 29, -1, 31, 32, 33, 34, -1, -1, 37, -1,
- 3, 40, 41, -1, 43, 8, 45, 10, 11, 12,
- 13, -1, -1, 16, -1, 18, 19, -1, 21, 22,
- 23, -1, -1, 26, 27, 28, 29, -1, 31, 32,
- 33, 34, -1, -1, -1, -1, 3, 40, 41, -1,
- 43, 8, 45, 10, 11, 12, 13, -1, -1, 16,
- -1, -1, 19, -1, 21, 22, 23, -1, -1, 26,
- 27, 28, 29, -1, 31, 32, 33, 34, -1, -1,
- -1, -1, 3, 40, 41, -1, 43, 8, 45, 10,
- 11, 12, 13, -1, -1, 16, -1, 18, -1, -1,
- 21, 22, 23, -1, -1, 26, 27, 28, 29, -1,
- 31, 32, 33, 34, -1, -1, -1, -1, 3, 40,
- 41, -1, 43, 8, 45, 10, 11, 12, 13, -1,
- -1, 16, -1, -1, -1, -1, 21, 22, 23, -1,
- -1, 26, 27, 28, 29, -1, 31, 32, 33, 34,
- -1, -1, 37, -1, 3, 40, 41, -1, 43, 8,
- 45, 10, 11, 12, 13, -1, -1, 16, -1, -1,
- -1, -1, 21, 22, 23, -1, -1, 26, 27, 28,
- 29, -1, 31, 32, 33, 34, -1, -1, -1, -1,
- -1, 40, 41, -1, 43, 23, 45, -1, 26, 27,
- 28, 29, -1, 31, 32, 33, 34, -1, -1, -1,
- -1, -1, 40, 41, 26, 27, 28, 29, -1, 31,
- -1, 33, 34, -1, -1, -1, -1, -1, 40, 41
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+ STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+ means the default is an error. */
+static const yytype_uint8 yydefact[] =
+{
+ 0, 0, 133, 0, 0, 0, 133, 133, 0, 0,
+ 0, 0, 152, 38, 39, 0, 97, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 3, 5, 0,
+ 0, 133, 133, 0, 40, 43, 45, 151, 46, 50,
+ 60, 54, 51, 48, 56, 49, 55, 57, 58, 59,
+ 0, 135, 142, 143, 0, 4, 117, 0, 0, 133,
+ 133, 0, 133, 0, 0, 133, 38, 92, 88, 0,
+ 144, 0, 153, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 12, 14, 22, 18, 30, 16,
+ 24, 20, 28, 26, 32, 33, 35, 36, 8, 9,
+ 0, 0, 1, 38, 44, 41, 47, 128, 129, 2,
+ 133, 133, 136, 137, 133, 133, 0, 131, 130, 132,
+ 148, 145, 133, 134, 116, 118, 127, 0, 133, 0,
+ 133, 133, 133, 133, 0, 133, 133, 0, 0, 90,
+ 89, 98, 147, 133, 13, 15, 23, 19, 31, 17,
+ 25, 21, 29, 27, 34, 37, 10, 11, 96, 87,
+ 42, 0, 0, 140, 141, 0, 0, 146, 0, 133,
+ 133, 133, 133, 133, 133, 0, 133, 0, 133, 0,
+ 0, 0, 0, 133, 0, 133, 0, 0, 133, 85,
+ 84, 91, 0, 138, 139, 0, 0, 150, 149, 133,
+ 133, 93, 0, 0, 0, 120, 121, 119, 0, 102,
+ 133, 0, 133, 133, 0, 6, 0, 133, 0, 71,
+ 72, 133, 133, 133, 133, 0, 0, 0, 0, 52,
+ 53, 0, 86, 82, 0, 0, 95, 122, 123, 124,
+ 125, 126, 81, 108, 110, 112, 103, 0, 79, 114,
+ 0, 0, 0, 0, 61, 7, 133, 0, 62, 0,
+ 0, 0, 0, 73, 0, 133, 74, 83, 94, 133,
+ 133, 133, 133, 109, 111, 113, 80, 0, 0, 133,
+ 63, 64, 0, 133, 133, 69, 70, 75, 76, 0,
+ 99, 0, 0, 0, 133, 115, 104, 105, 133, 133,
+ 0, 0, 133, 133, 133, 101, 106, 107, 0, 0,
+ 67, 68, 0, 0, 100, 65, 66, 77, 78
};
-/* -*-C-*- Note some compilers choke on comments on `#line' lines. */
-#line 3 "/usr/local/lib/bison.simple"
-/* Skeleton output parser for bison,
- Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yytype_int16 yydefgoto[] =
+{
+ -1, 33, 216, 34, 35, 106, 36, 37, 38, 39,
+ 40, 41, 42, 43, 190, 44, 45, 46, 47, 48,
+ 49, 202, 208, 209, 210, 251, 56, 57, 124, 125,
+ 109, 120, 58, 50, 163, 126, 53, 54
+};
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF -188
+static const yytype_int16 yypact[] =
+{
+ 293, -26, -188, 7, 41, 43, -188, -188, 46, 629,
+ -17, 485, 11, 23, -188, 675, -188, 65, 68, 96,
+ 77, 119, 92, 124, 127, 140, 143, -188, -188, 149,
+ 154, -188, -188, 98, -188, -188, 662, -188, 208, -188,
+ -188, -188, -188, -188, -188, -188, -188, -188, -188, -188,
+ 24, 12, -188, -36, 341, -188, -188, 177, 389, -188,
+ 142, 8, 147, 169, 185, 148, 200, 662, 208, 181,
+ -36, 581, -188, 146, 184, 189, 130, 192, 135, 197,
+ 198, 202, 207, 209, -188, -188, -188, -188, -188, -188,
+ -188, -188, -188, -188, -188, -188, -188, -188, -188, -188,
+ 180, 167, -188, -188, -188, -188, 208, -188, -188, -188,
+ -188, -188, 437, 437, -188, -188, 581, -188, -188, -188,
+ -188, -36, -188, -188, -188, 227, -188, -12, -188, 20,
+ -188, -188, -188, -188, 122, -188, -188, 179, 37, 208,
+ 208, -188, -36, -188, -188, -188, -188, -188, -188, -188,
+ -188, -188, -188, -188, -188, -188, -188, -188, -188, -188,
+ -188, 389, 389, 53, 53, 533, 533, -36, 224, -188,
+ -188, -188, -188, -188, -188, 40, -188, 171, -188, 233,
+ 190, 48, 73, -188, 247, -188, 239, 267, -188, 208,
+ -188, 208, 37, -188, -188, 437, 437, -36, -36, -188,
+ -188, -188, 276, 389, 389, 389, 389, 389, 275, 226,
+ -188, 42, -188, -188, 270, -188, 231, -188, 230, -188,
+ -188, -188, -188, -188, -188, 272, 389, 231, 234, -188,
+ -188, 37, 208, -188, 282, 287, -188, -188, -188, 76,
+ 76, 76, -188, -188, -188, -188, 229, 63, -188, -188,
+ 274, -27, 280, 241, -188, -188, -188, 99, -188, 285,
+ 246, 292, 252, -188, 227, -188, -188, -188, -188, -188,
+ -188, -188, -188, -188, -188, -188, -188, -22, 288, -188,
+ -188, -188, 131, -188, -188, -188, -188, -188, -188, 133,
+ 129, 389, 389, 389, -188, -188, -188, 389, -188, -188,
+ 297, 258, -188, -188, -188, -188, -188, 389, 302, 266,
+ -188, -188, 308, 268, -188, -188, -188, -188, -188
+};
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+/* YYPGOTO[NTERM-NUM]. */
+static const yytype_int16 yypgoto[] =
+{
+ -188, -188, 141, -30, -25, -62, 322, -188, -5, -188,
+ -188, -188, -188, -188, -185, -188, -188, -188, -188, -188,
+ -188, 49, -188, 123, -188, 82, -171, -6, -188, -187,
+ -188, -58, -32, -188, 5, 2, 10, 329
+};
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* As a special exception, when this file is copied by Bison into a
- Bison output file, you may use that output file without restriction.
- This special exception was added by the Free Software Foundation
- in version 1.24 of Bison. */
-
-#ifndef alloca
-#ifdef __GNUC__
-#define alloca __builtin_alloca
-#else /* not GNU C. */
-#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi)
-#include <alloca.h>
-#else /* not sparc */
-#if defined (MSDOS) && !defined (__TURBOC__)
-#include <malloc.h>
-#else /* not MSDOS, or __TURBOC__ */
-#if defined(_AIX)
-#include <malloc.h>
- #pragma alloca
-#else /* not MSDOS, __TURBOC__, or _AIX */
-#ifdef __hpux
-#ifdef __cplusplus
-extern "C" {
-void *alloca (unsigned int);
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says.
+ If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF -1
+static const yytype_uint16 yytable[] =
+{
+ 63, 64, 52, 132, 68, 51, 140, 233, 105, 174,
+ 114, 104, 225, 69, 228, 115, 237, 238, 239, 240,
+ 241, 70, 130, 55, 278, 100, 101, 127, 129, 278,
+ 134, 279, 59, 138, 176, 72, 294, 123, 105, 264,
+ 2, 177, 104, 110, 111, 3, 267, 4, 5, 6,
+ 7, 248, 261, 262, 212, 10, 117, 118, 119, 112,
+ 113, 139, 221, 131, 121, 16, 60, 249, 62, 123,
+ 61, 65, 276, 107, 108, 178, 160, 191, 161, 162,
+ 73, 142, 165, 166, 110, 111, 123, 223, 249, 123,
+ 84, 123, 31, 85, 32, 213, 175, 123, 102, 250,
+ 181, 182, 89, 222, 239, 240, 241, 169, 170, 105,
+ 160, 192, 123, 283, 52, 52, 168, 93, 164, 217,
+ 250, 86, 123, 87, 179, 180, 167, 232, 224, 186,
+ 187, 312, 313, 189, 304, 200, 183, 203, 204, 205,
+ 206, 207, 211, 184, 90, 298, 91, 302, 123, 94,
+ 88, 226, 95, 226, 284, 146, 231, 147, 256, 105,
+ 150, 160, 151, 52, 52, 96, 193, 194, 97, 265,
+ 214, 123, 218, 92, 98, 197, 198, 185, 247, 99,
+ 123, 122, 123, 135, 148, 257, 299, 189, 303, 152,
+ 128, 226, 226, 234, 235, 133, 215, 52, 52, 136,
+ 141, 164, 160, 2, 143, 137, 252, 253, 3, 144,
+ 4, 5, 6, 7, 145, 259, 260, 149, 10, 117,
+ 118, 119, 153, 154, 282, 159, 189, 155, 16, 199,
+ 200, 201, 156, 289, 157, 15, 158, 188, 291, 292,
+ 293, 17, 18, 19, 20, 21, 220, 297, 219, 22,
+ 23, 24, 25, 26, 229, 31, 255, 32, 169, 170,
+ 29, 30, 307, 290, 243, 244, 245, 273, 274, 275,
+ 226, 226, 215, 296, 171, 172, 173, 300, 301, 117,
+ 118, 119, 230, 236, 242, 254, 258, 263, 306, 268,
+ 266, 269, 308, 309, 1, 280, 2, 281, 314, 249,
+ 285, 3, 286, 4, 5, 6, 7, 287, 288, 8,
+ 9, 10, 310, 295, 311, 11, 12, 315, 13, 14,
+ 15, 16, 316, 317, 318, 227, 17, 18, 19, 20,
+ 21, 67, 277, 246, 22, 23, 24, 25, 26, 305,
+ 71, 0, 27, 28, 2, 29, 30, 0, 31, 3,
+ 32, 4, 5, 6, 7, 0, 0, 8, 9, 10,
+ 0, 0, 0, 116, 0, 0, 13, 14, 15, 16,
+ 0, 0, 0, 0, 17, 18, 19, 20, 21, 0,
+ 0, 0, 22, 23, 24, 25, 26, 0, 0, 117,
+ 118, 119, 2, 29, 30, 0, 31, 3, 32, 4,
+ 5, 6, 7, 0, 0, 8, 9, 10, 0, 0,
+ 0, 11, 12, 0, 13, 14, 15, 16, 0, 0,
+ 0, 0, 17, 18, 19, 20, 21, 0, 0, 0,
+ 22, 23, 24, 25, 26, 0, 0, 0, 123, 0,
+ 2, 29, 30, 0, 31, 3, 32, 4, 5, 6,
+ 7, 0, 0, 8, 9, 10, 0, 0, 0, 11,
+ 12, 0, 13, 14, 15, 16, 0, 0, 0, 0,
+ 17, 18, 19, 20, 21, 0, 0, 0, 22, 23,
+ 24, 25, 26, 0, 0, 0, 0, 0, 2, 29,
+ 30, 0, 31, 3, 32, 4, 5, 6, 7, 0,
+ 0, 8, 9, 10, 0, 0, 0, 0, 12, 0,
+ 13, 14, 15, 16, 0, 0, 0, 0, 17, 18,
+ 19, 20, 21, 0, 0, 0, 22, 23, 24, 25,
+ 26, 0, 0, 0, 0, 0, 2, 29, 30, 0,
+ 31, 3, 32, 4, 5, 6, 7, 0, 0, 8,
+ 9, 10, 0, 0, 0, 0, 0, 0, 13, 14,
+ 15, 16, 0, 0, 0, 0, 17, 18, 19, 20,
+ 21, 0, 0, 0, 22, 23, 24, 25, 26, 0,
+ 0, 0, 123, 0, 2, 29, 30, 0, 31, 3,
+ 32, 4, 5, 6, 7, 0, 0, 8, 9, 10,
+ 0, 0, 0, 0, 0, 0, 13, 14, 15, 16,
+ 0, 0, 0, 0, 17, 18, 19, 20, 21, 0,
+ 0, 0, 22, 23, 24, 25, 26, 0, 0, 0,
+ 0, 0, 2, 29, 30, 0, 31, 3, 32, 4,
+ 5, 6, 7, 0, 0, 0, 0, 10, 0, 0,
+ 0, 0, 0, 0, 66, 14, 15, 16, 0, 0,
+ 0, 0, 17, 18, 19, 20, 21, 0, 0, 0,
+ 22, 23, 24, 25, 26, 0, 0, 0, 0, 0,
+ 0, 29, 30, 0, 31, 0, 32, 103, 14, 15,
+ 0, 0, 0, 0, 0, 17, 18, 19, 20, 21,
+ 0, 0, 0, 22, 23, 24, 25, 26, 74, 75,
+ 76, 77, 78, 0, 29, 30, 79, 0, 0, 80,
+ 81, 0, 0, 0, 0, 0, 0, 82, 83
+};
+
+static const yytype_int16 yycheck[] =
+{
+ 6, 7, 0, 61, 9, 0, 68, 192, 38, 21,
+ 46, 36, 183, 30, 185, 51, 203, 204, 205, 206,
+ 207, 11, 14, 49, 51, 31, 32, 59, 60, 51,
+ 62, 58, 25, 65, 14, 24, 58, 49, 68, 226,
+ 3, 21, 67, 31, 32, 8, 231, 10, 11, 12,
+ 13, 9, 223, 224, 14, 18, 48, 49, 50, 47,
+ 48, 66, 14, 55, 54, 28, 25, 25, 25, 49,
+ 29, 25, 9, 49, 50, 55, 106, 139, 110, 111,
+ 57, 71, 114, 115, 31, 32, 49, 14, 25, 49,
+ 25, 49, 55, 25, 57, 55, 128, 49, 0, 57,
+ 132, 133, 25, 55, 291, 292, 293, 31, 32, 139,
+ 140, 143, 49, 14, 112, 113, 122, 25, 113, 177,
+ 57, 25, 49, 27, 130, 131, 116, 189, 55, 135,
+ 136, 302, 303, 138, 5, 6, 14, 169, 170, 171,
+ 172, 173, 174, 21, 25, 14, 27, 14, 49, 25,
+ 54, 183, 25, 185, 55, 25, 188, 27, 216, 189,
+ 25, 191, 27, 161, 162, 25, 161, 162, 25, 227,
+ 176, 49, 178, 54, 25, 165, 166, 55, 210, 25,
+ 49, 4, 49, 14, 54, 217, 55, 192, 55, 54,
+ 48, 223, 224, 199, 200, 48, 25, 195, 196, 14,
+ 19, 196, 232, 3, 58, 57, 212, 213, 8, 25,
+ 10, 11, 12, 13, 25, 221, 222, 25, 18, 48,
+ 49, 50, 25, 25, 256, 58, 231, 25, 28, 5,
+ 6, 7, 25, 265, 25, 27, 56, 58, 270, 271,
+ 272, 33, 34, 35, 36, 37, 56, 279, 15, 41,
+ 42, 43, 44, 45, 15, 55, 25, 57, 31, 32,
+ 52, 53, 294, 269, 38, 39, 40, 38, 39, 40,
+ 302, 303, 25, 279, 47, 48, 49, 283, 284, 48,
+ 49, 50, 15, 7, 9, 15, 56, 15, 294, 7,
+ 56, 4, 298, 299, 1, 15, 3, 56, 304, 25,
+ 15, 8, 56, 10, 11, 12, 13, 15, 56, 16,
+ 17, 18, 15, 25, 56, 22, 23, 15, 25, 26,
+ 27, 28, 56, 15, 56, 184, 33, 34, 35, 36,
+ 37, 9, 250, 210, 41, 42, 43, 44, 45, 290,
+ 11, -1, 49, 50, 3, 52, 53, -1, 55, 8,
+ 57, 10, 11, 12, 13, -1, -1, 16, 17, 18,
+ -1, -1, -1, 22, -1, -1, 25, 26, 27, 28,
+ -1, -1, -1, -1, 33, 34, 35, 36, 37, -1,
+ -1, -1, 41, 42, 43, 44, 45, -1, -1, 48,
+ 49, 50, 3, 52, 53, -1, 55, 8, 57, 10,
+ 11, 12, 13, -1, -1, 16, 17, 18, -1, -1,
+ -1, 22, 23, -1, 25, 26, 27, 28, -1, -1,
+ -1, -1, 33, 34, 35, 36, 37, -1, -1, -1,
+ 41, 42, 43, 44, 45, -1, -1, -1, 49, -1,
+ 3, 52, 53, -1, 55, 8, 57, 10, 11, 12,
+ 13, -1, -1, 16, 17, 18, -1, -1, -1, 22,
+ 23, -1, 25, 26, 27, 28, -1, -1, -1, -1,
+ 33, 34, 35, 36, 37, -1, -1, -1, 41, 42,
+ 43, 44, 45, -1, -1, -1, -1, -1, 3, 52,
+ 53, -1, 55, 8, 57, 10, 11, 12, 13, -1,
+ -1, 16, 17, 18, -1, -1, -1, -1, 23, -1,
+ 25, 26, 27, 28, -1, -1, -1, -1, 33, 34,
+ 35, 36, 37, -1, -1, -1, 41, 42, 43, 44,
+ 45, -1, -1, -1, -1, -1, 3, 52, 53, -1,
+ 55, 8, 57, 10, 11, 12, 13, -1, -1, 16,
+ 17, 18, -1, -1, -1, -1, -1, -1, 25, 26,
+ 27, 28, -1, -1, -1, -1, 33, 34, 35, 36,
+ 37, -1, -1, -1, 41, 42, 43, 44, 45, -1,
+ -1, -1, 49, -1, 3, 52, 53, -1, 55, 8,
+ 57, 10, 11, 12, 13, -1, -1, 16, 17, 18,
+ -1, -1, -1, -1, -1, -1, 25, 26, 27, 28,
+ -1, -1, -1, -1, 33, 34, 35, 36, 37, -1,
+ -1, -1, 41, 42, 43, 44, 45, -1, -1, -1,
+ -1, -1, 3, 52, 53, -1, 55, 8, 57, 10,
+ 11, 12, 13, -1, -1, -1, -1, 18, -1, -1,
+ -1, -1, -1, -1, 25, 26, 27, 28, -1, -1,
+ -1, -1, 33, 34, 35, 36, 37, -1, -1, -1,
+ 41, 42, 43, 44, 45, -1, -1, -1, -1, -1,
+ -1, 52, 53, -1, 55, -1, 57, 25, 26, 27,
+ -1, -1, -1, -1, -1, 33, 34, 35, 36, 37,
+ -1, -1, -1, 41, 42, 43, 44, 45, 33, 34,
+ 35, 36, 37, -1, 52, 53, 41, -1, -1, 44,
+ 45, -1, -1, -1, -1, -1, -1, 52, 53
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const yytype_uint8 yystos[] =
+{
+ 0, 1, 3, 8, 10, 11, 12, 13, 16, 17,
+ 18, 22, 23, 25, 26, 27, 28, 33, 34, 35,
+ 36, 37, 41, 42, 43, 44, 45, 49, 50, 52,
+ 53, 55, 57, 60, 62, 63, 65, 66, 67, 68,
+ 69, 70, 71, 72, 74, 75, 76, 77, 78, 79,
+ 92, 93, 94, 95, 96, 49, 85, 86, 91, 25,
+ 25, 29, 25, 86, 86, 25, 25, 65, 67, 30,
+ 95, 96, 24, 57, 33, 34, 35, 36, 37, 41,
+ 44, 45, 52, 53, 25, 25, 25, 27, 54, 25,
+ 25, 27, 54, 25, 25, 25, 25, 25, 25, 25,
+ 86, 86, 0, 25, 63, 62, 64, 49, 50, 89,
+ 31, 32, 47, 48, 46, 51, 22, 48, 49, 50,
+ 90, 95, 4, 49, 87, 88, 94, 91, 48, 91,
+ 14, 55, 90, 48, 91, 14, 14, 57, 91, 67,
+ 64, 19, 95, 58, 25, 25, 25, 27, 54, 25,
+ 25, 27, 54, 25, 25, 25, 25, 25, 56, 58,
+ 62, 91, 91, 93, 93, 91, 91, 95, 86, 31,
+ 32, 47, 48, 49, 21, 91, 14, 21, 55, 86,
+ 86, 91, 91, 14, 21, 55, 86, 86, 58, 67,
+ 73, 64, 91, 93, 93, 47, 48, 95, 95, 5,
+ 6, 7, 80, 91, 91, 91, 91, 91, 81, 82,
+ 83, 91, 14, 55, 86, 25, 61, 90, 86, 15,
+ 56, 14, 55, 14, 55, 85, 91, 61, 85, 15,
+ 15, 91, 64, 73, 86, 86, 7, 88, 88, 88,
+ 88, 88, 9, 38, 39, 40, 82, 91, 9, 25,
+ 57, 84, 86, 86, 15, 25, 90, 91, 56, 86,
+ 86, 85, 85, 15, 88, 90, 56, 73, 7, 4,
+ 47, 48, 49, 38, 39, 40, 9, 84, 51, 58,
+ 15, 56, 91, 14, 55, 15, 56, 15, 56, 91,
+ 86, 91, 91, 91, 58, 25, 86, 91, 14, 55,
+ 86, 86, 14, 55, 5, 80, 86, 91, 86, 86,
+ 15, 56, 85, 85, 86, 15, 56, 15, 56
};
-#else /* not __cplusplus */
-void *alloca ();
-#endif /* not __cplusplus */
-#endif /* __hpux */
-#endif /* not _AIX */
-#endif /* not MSDOS, or __TURBOC__ */
-#endif /* not sparc. */
-#endif /* not GNU C. */
-#endif /* alloca not defined. */
-
-/* This is the parser code that is written into each bison parser
- when the %semantic_parser declaration is not specified in the grammar.
- It was written by Richard Stallman by simplifying the hairy parser
- used when %semantic_parser is specified. */
-
-/* Note: there must be only one dollar sign in this file.
- It is replaced by the list of actions, each action
- as one case of the switch. */
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
-#define YYEMPTY -2
+#define YYEMPTY (-2)
#define YYEOF 0
-#define YYACCEPT return(0)
-#define YYABORT return(1)
-#define YYERROR goto yyerrlab1
-/* Like YYERROR except do call yyerror.
- This remains here temporarily to ease the
- transition to the new meaning of YYERROR, for GCC.
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror. This remains here temporarily
+ to ease the transition to the new meaning of YYERROR, for GCC.
Once GCC version 2 has supplanted version 1, this can go. */
+
#define YYFAIL goto yyerrlab
+
#define YYRECOVERING() (!!yyerrstatus)
-#define YYBACKUP(token, value) \
+
+#define YYBACKUP(Token, Value) \
do \
if (yychar == YYEMPTY && yylen == 1) \
- { yychar = (token), yylval = (value); \
- yychar1 = YYTRANSLATE (yychar); \
- YYPOPSTACK; \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ yytoken = YYTRANSLATE (yychar); \
+ YYPOPSTACK (1); \
goto yybackup; \
} \
else \
- { yyerror ("syntax error: cannot back up"); YYERROR; } \
-while (0)
+ { \
+ yyerror (YY_("syntax error: cannot back up")); \
+ YYERROR; \
+ } \
+while (YYID (0))
+
#define YYTERROR 1
#define YYERRCODE 256
-#ifndef YYPURE
-#define YYLEX yylex()
-#endif
-#ifdef YYPURE
-#ifdef YYLSP_NEEDED
-#ifdef YYLEX_PARAM
-#define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM)
-#else
-#define YYLEX yylex(&yylval, &yylloc)
-#endif
-#else /* not YYLSP_NEEDED */
-#ifdef YYLEX_PARAM
-#define YYLEX yylex(&yylval, YYLEX_PARAM)
-#else
-#define YYLEX yylex(&yylval)
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
#endif
-#endif /* not YYLSP_NEEDED */
-#endif
-
-/* If nonreentrant, generate the variables here */
-#ifndef YYPURE
-int yychar; /* the lookahead symbol */
-YYSTYPE yylval; /* the semantic value of the */
- /* lookahead symbol */
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
-#ifdef YYLSP_NEEDED
-YYLTYPE yylloc; /* location data for the lookahead */
- /* symbol */
+#ifndef YY_LOCATION_PRINT
+# if YYLTYPE_IS_TRIVIAL
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
#endif
-int yynerrs; /* number of parse errors so far */
-#endif /* not YYPURE */
-
-#if YYDEBUG != 0
-int yydebug; /* nonzero means print parse trace */
-/* Since this is uninitialized, it does not stop multiple parsers
- from coexisting. */
-#endif
-/* YYINITDEPTH indicates the initial size of the parser's stacks */
+/* YYLEX -- calling `yylex' with the right arguments. */
-#ifndef YYINITDEPTH
-#define YYINITDEPTH 200
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (YYLEX_PARAM)
+#else
+# define YYLEX yylex ()
#endif
-/* YYMAXDEPTH is the maximum size the stacks can grow to
- (effective only if the built-in stack extension method is used). */
-
-#if YYMAXDEPTH == 0
-#undef YYMAXDEPTH
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
#endif
+{
+ if (!yyvaluep)
+ return;
+# ifdef YYPRINT
+ if (yytype < YYNTOKENS)
+ YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+ YYUSE (yyoutput);
+# endif
+ switch (yytype)
+ {
+ default:
+ break;
+ }
+}
-#ifndef YYMAXDEPTH
-#define YYMAXDEPTH 10000
-#endif
-/* Prevent warning if -Wstrict-prototypes. */
-#ifdef __GNUC__
-int yyparse (void);
-#endif
-\f
-#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
-#define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT)
-#else /* not GNU C or C++ */
-#ifndef __cplusplus
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
-/* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
+#else
static void
-__yy_memcpy (to, from, count)
- char *to;
- char *from;
- int count;
+yy_symbol_print (yyoutput, yytype, yyvaluep)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+#endif
{
- register char *f = from;
- register char *t = to;
- register int i = count;
+ if (yytype < YYNTOKENS)
+ YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+ else
+ YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
- while (i-- > 0)
- *t++ = *f++;
+ yy_symbol_value_print (yyoutput, yytype, yyvaluep);
+ YYFPRINTF (yyoutput, ")");
}
-#else /* __cplusplus */
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
-/* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
static void
-__yy_memcpy (char *to, char *from, int count)
-{
- register char *f = from;
- register char *t = to;
- register int i = count;
-
- while (i-- > 0)
- *t++ = *f++;
-}
-
-#endif
+yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
+#else
+static void
+yy_stack_print (bottom, top)
+ yytype_int16 *bottom;
+ yytype_int16 *top;
#endif
-\f
-#line 196 "/usr/local/lib/bison.simple"
-
-/* The user can define YYPARSE_PARAM as the name of an argument to be passed
- into yyparse. The argument should have type void *.
- It should actually point to an object.
- Grammar actions can access the variable by casting it
- to the proper pointer type. */
-
-#ifdef YYPARSE_PARAM
-#ifdef __cplusplus
-#define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
-#define YYPARSE_PARAM_DECL
-#else /* not __cplusplus */
-#define YYPARSE_PARAM_ARG YYPARSE_PARAM
-#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
-#endif /* not __cplusplus */
-#else /* not YYPARSE_PARAM */
-#define YYPARSE_PARAM_ARG
-#define YYPARSE_PARAM_DECL
-#endif /* not YYPARSE_PARAM */
-
-int
-yyparse(YYPARSE_PARAM_ARG)
- YYPARSE_PARAM_DECL
{
- register int yystate;
- register int yyn;
- register short *yyssp;
- register YYSTYPE *yyvsp;
- int yyerrstatus; /* number of tokens to shift before error messages enabled */
- int yychar1 = 0; /* lookahead token as an internal (translated) token number */
+ YYFPRINTF (stderr, "Stack now");
+ for (; bottom <= top; ++bottom)
+ YYFPRINTF (stderr, " %d", *bottom);
+ YYFPRINTF (stderr, "\n");
+}
- short yyssa[YYINITDEPTH]; /* the state stack */
- YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
- short *yyss = yyssa; /* refer to the stacks thru separate pointers */
- YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
-#ifdef YYLSP_NEEDED
- YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
- YYLTYPE *yyls = yylsa;
- YYLTYPE *yylsp;
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
-#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, int yyrule)
#else
-#define YYPOPSTACK (yyvsp--, yyssp--)
-#endif
-
- int yystacksize = YYINITDEPTH;
-
-#ifdef YYPURE
- int yychar;
- YYSTYPE yylval;
- int yynerrs;
-#ifdef YYLSP_NEEDED
- YYLTYPE yylloc;
-#endif
+static void
+yy_reduce_print (yyvsp, yyrule)
+ YYSTYPE *yyvsp;
+ int yyrule;
#endif
+{
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ fprintf (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &(yyvsp[(yyi + 1) - (yynrhs)])
+ );
+ fprintf (stderr, "\n");
+ }
+}
- YYSTYPE yyval; /* the variable used to return */
- /* semantic values from the action */
- /* routines */
-
- int yylen;
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Starting parse\n");
-#endif
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug) \
+ yy_reduce_print (yyvsp, Rule); \
+} while (YYID (0))
- yystate = 0;
- yyerrstatus = 0;
- yynerrs = 0;
- yychar = YYEMPTY; /* Cause a token to be read. */
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
- /* Initialize stack pointers.
- Waste one element of value and location stack
- so that they stay on the same level as the state stack.
- The wasted elements are never initialized. */
- yyssp = yyss - 1;
- yyvsp = yyvs;
-#ifdef YYLSP_NEEDED
- yylsp = yyls;
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH 200
#endif
-/* Push a new state, which is found in yystate . */
-/* In all cases, when you get here, the value and location stacks
- have just been pushed. so pushing a state here evens the stacks. */
-yynewstate:
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
- *++yyssp = yystate;
+ Do not make this value too large; the results are undefined if
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+ evaluated with infinite-precision integer arithmetic. */
- if (yyssp >= yyss + yystacksize - 1)
- {
- /* Give user a chance to reallocate the stack */
- /* Use copies of these so that the &'s don't force the real ones into memory. */
- YYSTYPE *yyvs1 = yyvs;
- short *yyss1 = yyss;
-#ifdef YYLSP_NEEDED
- YYLTYPE *yyls1 = yyls;
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
#endif
- /* Get the current used size of the three stacks, in elements. */
- int size = yyssp - yyss + 1;
+\f
-#ifdef yyoverflow
- /* Each stack pointer address is followed by the size of
- the data in use in that stack, in bytes. */
-#ifdef YYLSP_NEEDED
- /* This used to be a conditional around just the two extra args,
- but that might be undefined if yyoverflow is a macro. */
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- &yyls1, size * sizeof (*yylsp),
- &yystacksize);
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+# if defined __GLIBC__ && defined _STRING_H
+# define yystrlen strlen
+# else
+/* Return the length of YYSTR. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
#else
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- &yystacksize);
-#endif
-
- yyss = yyss1; yyvs = yyvs1;
-#ifdef YYLSP_NEEDED
- yyls = yyls1;
+static YYSIZE_T
+yystrlen (yystr)
+ const char *yystr;
#endif
-#else /* no yyoverflow */
- /* Extend the stack our own way. */
- if (yystacksize >= YYMAXDEPTH)
+{
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
+ continue;
+ return yylen;
+}
+# endif
+# endif
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+ char *yydest;
+ const char *yysrc;
+#endif
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+ YYCHAR while in state YYSTATE. Return the number of bytes copied,
+ including the terminating null byte. If YYRESULT is null, do not
+ copy anything; just return the number of bytes that would be
+ copied. As a special case, return 0 if an ordinary "syntax error"
+ message will do. Return YYSIZE_MAXIMUM if overflow occurs during
+ size calculation. */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+ int yyn = yypact[yystate];
+
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 0;
+ else
+ {
+ int yytype = YYTRANSLATE (yychar);
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ int yysize_overflow = 0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+
+# if 0
+ /* This is so xgettext sees the translatable formats that are
+ constructed on the fly. */
+ YY_("syntax error, unexpected %s");
+ YY_("syntax error, unexpected %s, expecting %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ static char const yyexpecting[] = ", expecting %s";
+ static char const yyor[] = " or %s";
+ char yyformat[sizeof yyunexpected
+ + sizeof yyexpecting - 1
+ + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+ * (sizeof yyor - 1))];
+ char const *yyprefix = yyexpecting;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytname[yytype];
+ yyfmt = yystpcpy (yyformat, yyunexpected);
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ yyformat[sizeof yyunexpected - 1] = '\0';
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+ yyfmt = yystpcpy (yyfmt, yyprefix);
+ yyprefix = yyor;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + yystrlen (yyf);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+
+ if (yysize_overflow)
+ return YYSIZE_MAXIMUM;
+
+ if (yyresult)
{
- yyerror("parser stack overflow");
- return 2;
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ char *yyp = yyresult;
+ int yyi = 0;
+ while ((*yyp = *yyf) != '\0')
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
}
- yystacksize *= 2;
- if (yystacksize > YYMAXDEPTH)
- yystacksize = YYMAXDEPTH;
- yyss = (short *) alloca (yystacksize * sizeof (*yyssp));
- __yy_memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp));
- yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
- __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp));
-#ifdef YYLSP_NEEDED
- yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
- __yy_memcpy ((char *)yyls, (char *)yyls1, size * sizeof (*yylsp));
+ return yysize;
+ }
+}
+#endif /* YYERROR_VERBOSE */
+\f
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol. |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep)
+ const char *yymsg;
+ int yytype;
+ YYSTYPE *yyvaluep;
#endif
-#endif /* no yyoverflow */
+{
+ YYUSE (yyvaluep);
+
+ if (!yymsg)
+ yymsg = "Deleting";
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+
+ default:
+ break;
+ }
+}
+\f
+
+/* Prevent warnings from -Wmissing-prototypes. */
- yyssp = yyss + size - 1;
- yyvsp = yyvs + size - 1;
-#ifdef YYLSP_NEEDED
- yylsp = yyls + size - 1;
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Stack size increased to %d\n", yystacksize);
+
+
+/* The look-ahead symbol. */
+int yychar;
+
+/* The semantic value of the look-ahead symbol. */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far. */
+int yynerrs;
+
+
+
+/*----------.
+| yyparse. |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+ void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void)
+#else
+int
+yyparse ()
+
+#endif
+#endif
+{
+
+ int yystate;
+ int yyn;
+ int yyresult;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+ /* Look-ahead token as an internal (translated) token number. */
+ int yytoken = 0;
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
#endif
- if (yyssp >= yyss + yystacksize - 1)
+ /* Three stacks and their tools:
+ `yyss': related to states,
+ `yyvs': related to semantic values,
+ `yyls': related to locations.
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss = yyssa;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs = yyvsa;
+ YYSTYPE *yyvsp;
+
+
+
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
+
+ YYSIZE_T yystacksize = YYINITDEPTH;
+
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+
+
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yystate = 0;
+ yyerrstatus = 0;
+ yynerrs = 0;
+ yychar = YYEMPTY; /* Cause a token to be read. */
+
+ /* Initialize stack pointers.
+ Waste one element of value and location stack
+ so that they stay on the same level as the state stack.
+ The wasted elements are never initialized. */
+
+ yyssp = yyss;
+ yyvsp = yyvs;
+
+ goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate. |
+`------------------------------------------------------------*/
+ yynewstate:
+ /* In all cases, when you get here, the value and location stacks
+ have just been pushed. So pushing a state here evens the stacks. */
+ yyssp++;
+
+ yysetstate:
+ *yyssp = yystate;
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ {
+ /* Get the current used size of the three stacks, in elements. */
+ YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+ {
+ /* Give user a chance to reallocate the stack. Use copies of
+ these so that the &'s don't force the real ones into
+ memory. */
+ YYSTYPE *yyvs1 = yyvs;
+ yytype_int16 *yyss1 = yyss;
+
+
+ /* Each stack pointer address is followed by the size of the
+ data in use in that stack, in bytes. This used to be a
+ conditional around just the two extra args, but that might
+ be undefined if yyoverflow is a macro. */
+ yyoverflow (YY_("memory exhausted"),
+ &yyss1, yysize * sizeof (*yyssp),
+ &yyvs1, yysize * sizeof (*yyvsp),
+
+ &yystacksize);
+
+ yyss = yyss1;
+ yyvs = yyvs1;
+ }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+ goto yyexhaustedlab;
+# else
+ /* Extend the stack our own way. */
+ if (YYMAXDEPTH <= yystacksize)
+ goto yyexhaustedlab;
+ yystacksize *= 2;
+ if (YYMAXDEPTH < yystacksize)
+ yystacksize = YYMAXDEPTH;
+
+ {
+ yytype_int16 *yyss1 = yyss;
+ union yyalloc *yyptr =
+ (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+ if (! yyptr)
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss);
+ YYSTACK_RELOCATE (yyvs);
+
+# undef YYSTACK_RELOCATE
+ if (yyss1 != yyssa)
+ YYSTACK_FREE (yyss1);
+ }
+# endif
+#endif /* no yyoverflow */
+
+ yyssp = yyss + yysize - 1;
+ yyvsp = yyvs + yysize - 1;
+
+
+ YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+ (unsigned long int) yystacksize));
+
+ if (yyss + yystacksize - 1 <= yyssp)
YYABORT;
}
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Entering state %d\n", yystate);
-#endif
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
goto yybackup;
- yybackup:
-/* Do appropriate processing given the current state. */
-/* Read a lookahead token if we need one and don't already have one. */
-/* yyresume: */
+/*-----------.
+| yybackup. |
+`-----------*/
+yybackup:
- /* First try to decide what to do without reference to lookahead token. */
+ /* Do appropriate processing given the current state. Read a
+ look-ahead token if we need one and don't already have one. */
+ /* First try to decide what to do without reference to look-ahead token. */
yyn = yypact[yystate];
- if (yyn == YYFLAG)
+ if (yyn == YYPACT_NINF)
goto yydefault;
- /* Not known => get a lookahead token if don't already have one. */
-
- /* yychar is either YYEMPTY or YYEOF
- or a valid token in external form. */
+ /* Not known => get a look-ahead token if don't already have one. */
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
if (yychar == YYEMPTY)
{
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Reading a token: ");
-#endif
+ YYDPRINTF ((stderr, "Reading a token: "));
yychar = YYLEX;
}
- /* Convert token to internal form (in yychar1) for indexing tables with */
-
- if (yychar <= 0) /* This means end of input. */
+ if (yychar <= YYEOF)
{
- yychar1 = 0;
- yychar = YYEOF; /* Don't call YYLEX any more */
-
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Now at end of input.\n");
-#endif
+ yychar = yytoken = YYEOF;
+ YYDPRINTF ((stderr, "Now at end of input.\n"));
}
else
{
- yychar1 = YYTRANSLATE(yychar);
-
-#if YYDEBUG != 0
- if (yydebug)
- {
- fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
- /* Give the individual parser a way to print the precise meaning
- of a token, for further debugging info. */
-#ifdef YYPRINT
- YYPRINT (stderr, yychar, yylval);
-#endif
- fprintf (stderr, ")\n");
- }
-#endif
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
}
- yyn += yychar1;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
goto yydefault;
-
yyn = yytable[yyn];
-
- /* yyn is what to do for this token type in this state.
- Negative => reduce, -yyn is rule number.
- Positive => shift, yyn is new state.
- New state is final state => don't bother to shift,
- just return success.
- 0, or most negative number => error. */
-
- if (yyn < 0)
+ if (yyn <= 0)
{
- if (yyn == YYFLAG)
+ if (yyn == 0 || yyn == YYTABLE_NINF)
goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
- else if (yyn == 0)
- goto yyerrlab;
if (yyn == YYFINAL)
YYACCEPT;
- /* Shift the lookahead token. */
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus)
+ yyerrstatus--;
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
-#endif
+ /* Shift the look-ahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
- /* Discard the token being shifted unless it is eof. */
+ /* Discard the shifted token unless it is eof. */
if (yychar != YYEOF)
yychar = YYEMPTY;
+ yystate = yyn;
*++yyvsp = yylval;
-#ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
-#endif
- /* count tokens shifted since error; after three, turn off error status. */
- if (yyerrstatus) yyerrstatus--;
-
- yystate = yyn;
goto yynewstate;
-/* Do the default action for the current state. */
-yydefault:
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state. |
+`-----------------------------------------------------------*/
+yydefault:
yyn = yydefact[yystate];
if (yyn == 0)
goto yyerrlab;
+ goto yyreduce;
-/* Do a reduction. yyn is the number of a rule to reduce with. */
+
+/*-----------------------------.
+| yyreduce -- Do a reduction. |
+`-----------------------------*/
yyreduce:
+ /* yyn is the number of a rule to reduce with. */
yylen = yyr2[yyn];
- if (yylen > 0)
- yyval = yyvsp[1-yylen]; /* implement default value of the action */
-
-#if YYDEBUG != 0
- if (yydebug)
- {
- int i;
- fprintf (stderr, "Reducing via rule %d (line %d), ",
- yyn, yyrline[yyn]);
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'.
- /* Print the symbols being reduced, and their result. */
- for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
- fprintf (stderr, "%s ", yytname[yyrhs[i]]);
- fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
- }
-#endif
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. Assigning to YYVAL
+ unconditionally makes the parser a bit smaller, and it avoids a
+ GCC warning that YYVAL may be used uninitialized. */
+ yyval = yyvsp[1-yylen];
- switch (yyn) {
-
-case 1:
-#line 210 "./parse.y"
-{
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ case 2:
+#line 370 "/Users/chet/src/bash/src/parse.y"
+ {
/* Case of regular command. Discard the error
safety net,and return the command just parsed. */
- global_command = yyvsp[-1].command;
+ global_command = (yyvsp[(1) - (2)].command);
eof_encountered = 0;
- discard_parser_constructs (0);
+ /* discard_parser_constructs (0); */
+ if (parser_state & PST_CMDSUBST)
+ parser_state |= PST_EOFTOKEN;
YYACCEPT;
- ;
- break;}
-case 2:
-#line 219 "./parse.y"
-{
+ }
+ break;
+
+ case 3:
+#line 381 "/Users/chet/src/bash/src/parse.y"
+ {
/* Case of regular command, but not a very
interesting one. Return a NULL command. */
global_command = (COMMAND *)NULL;
+ if (parser_state & PST_CMDSUBST)
+ parser_state |= PST_EOFTOKEN;
YYACCEPT;
- ;
- break;}
-case 3:
-#line 226 "./parse.y"
-{
+ }
+ break;
+
+ case 4:
+#line 390 "/Users/chet/src/bash/src/parse.y"
+ {
/* Error during parsing. Return NULL command. */
global_command = (COMMAND *)NULL;
eof_encountered = 0;
- discard_parser_constructs (1);
- if (interactive)
+ /* discard_parser_constructs (1); */
+ if (interactive && parse_and_execute_level == 0)
{
YYACCEPT;
}
{
YYABORT;
}
- ;
- break;}
-case 4:
-#line 241 "./parse.y"
-{
+ }
+ break;
+
+ case 5:
+#line 405 "/Users/chet/src/bash/src/parse.y"
+ {
/* Case of EOF seen by itself. Do ignoreeof or
not. */
global_command = (COMMAND *)NULL;
handle_eof_input_unit ();
YYACCEPT;
- ;
- break;}
-case 5:
-#line 251 "./parse.y"
-{ yyval.word_list = make_word_list (yyvsp[0].word, (WORD_LIST *)NULL); ;
- break;}
-case 6:
-#line 253 "./parse.y"
-{ yyval.word_list = make_word_list (yyvsp[0].word, yyvsp[-1].word_list); ;
- break;}
-case 7:
-#line 257 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (1, r_output_direction, redir);
- ;
- break;}
-case 8:
-#line 262 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (0, r_input_direction, redir);
- ;
- break;}
-case 9:
-#line 267 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_output_direction, redir);
- ;
- break;}
-case 10:
-#line 272 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_input_direction, redir);
- ;
- break;}
-case 11:
-#line 277 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (1, r_appending_to, redir);
- ;
- break;}
-case 12:
-#line 282 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_appending_to, redir);
- ;
- break;}
-case 13:
-#line 287 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (0, r_reading_until, redir);
- redir_stack[need_here_doc++] = yyval.redirect;
- ;
- break;}
-case 14:
-#line 293 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_reading_until, redir);
- redir_stack[need_here_doc++] = yyval.redirect;
- ;
- break;}
-case 15:
-#line 299 "./parse.y"
-{
- redir.dest = yyvsp[0].number;
- yyval.redirect = make_redirection (0, r_duplicating_input, redir);
- ;
- break;}
-case 16:
-#line 304 "./parse.y"
-{
- redir.dest = yyvsp[0].number;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_duplicating_input, redir);
- ;
- break;}
-case 17:
-#line 309 "./parse.y"
-{
- redir.dest = yyvsp[0].number;
- yyval.redirect = make_redirection (1, r_duplicating_output, redir);
- ;
- break;}
-case 18:
-#line 314 "./parse.y"
-{
- redir.dest = yyvsp[0].number;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_duplicating_output, redir);
- ;
- break;}
-case 19:
-#line 319 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (0, r_duplicating_input_word, redir);
- ;
- break;}
-case 20:
-#line 324 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_duplicating_input_word, redir);
- ;
- break;}
-case 21:
-#line 329 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (1, r_duplicating_output_word, redir);
- ;
- break;}
-case 22:
-#line 334 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_duplicating_output_word, redir);
- ;
- break;}
-case 23:
-#line 339 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection
- (0, r_deblank_reading_until, redir);
- redir_stack[need_here_doc++] = yyval.redirect;
- ;
- break;}
-case 24:
-#line 346 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection
- (yyvsp[-2].number, r_deblank_reading_until, redir);
- redir_stack[need_here_doc++] = yyval.redirect;
- ;
- break;}
-case 25:
-#line 353 "./parse.y"
-{
- redir.dest = 0L;
- yyval.redirect = make_redirection (1, r_close_this, redir);
- ;
- break;}
-case 26:
-#line 358 "./parse.y"
-{
- redir.dest = 0L;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_close_this, redir);
- ;
- break;}
-case 27:
-#line 363 "./parse.y"
-{
- redir.dest = 0L;
- yyval.redirect = make_redirection (0, r_close_this, redir);
- ;
- break;}
-case 28:
-#line 368 "./parse.y"
-{
- redir.dest = 0L;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_close_this, redir);
- ;
- break;}
-case 29:
-#line 373 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (1, r_err_and_out, redir);
- ;
- break;}
-case 30:
-#line 378 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_input_output, redir);
- ;
- break;}
-case 31:
-#line 383 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (0, r_input_output, redir);
- ;
- break;}
-case 32:
-#line 388 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (1, r_output_force, redir);
- ;
- break;}
-case 33:
-#line 393 "./parse.y"
-{
- redir.filename = yyvsp[0].word;
- yyval.redirect = make_redirection (yyvsp[-2].number, r_output_force, redir);
- ;
- break;}
-case 34:
-#line 400 "./parse.y"
-{ yyval.element.word = yyvsp[0].word; yyval.element.redirect = 0; ;
- break;}
-case 35:
-#line 402 "./parse.y"
-{ yyval.element.word = yyvsp[0].word; yyval.element.redirect = 0; ;
- break;}
-case 36:
-#line 404 "./parse.y"
-{ yyval.element.redirect = yyvsp[0].redirect; yyval.element.word = 0; ;
- break;}
-case 37:
-#line 408 "./parse.y"
-{
- yyval.redirect = yyvsp[0].redirect;
- ;
- break;}
-case 38:
-#line 412 "./parse.y"
-{
- register REDIRECT *t;
+ }
+ break;
- for (t = yyvsp[-1].redirect; t->next; t = t->next)
- ;
- t->next = yyvsp[0].redirect;
- yyval.redirect = yyvsp[-1].redirect;
- ;
- break;}
-case 39:
-#line 423 "./parse.y"
-{ yyval.command = make_simple_command (yyvsp[0].element, (COMMAND *)NULL); ;
- break;}
-case 40:
-#line 425 "./parse.y"
-{ yyval.command = make_simple_command (yyvsp[0].element, yyvsp[-1].command); ;
- break;}
-case 41:
-#line 429 "./parse.y"
-{ yyval.command = clean_simple_command (yyvsp[0].command); ;
- break;}
-case 42:
-#line 431 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 43:
-#line 433 "./parse.y"
-{
- COMMAND *tc;
+ case 6:
+#line 415 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.word_list) = make_word_list ((yyvsp[(1) - (1)].word), (WORD_LIST *)NULL); }
+ break;
- tc = yyvsp[-1].command;
- /* According to Posix.2 3.9.5, redirections
- specified after the body of a function should
- be attached to the function and performed when
- the function is executed, not as part of the
- function definition command. */
- if (tc->type == cm_function_def)
- {
- tc = tc->value.Function_def->command;
- if (tc->type == cm_group)
- tc = tc->value.Group->command;
- }
- if (tc->redirects)
- {
- register REDIRECT *t;
- for (t = tc->redirects; t->next; t = t->next)
- ;
- t->next = yyvsp[0].redirect;
- }
- else
- tc->redirects = yyvsp[0].redirect;
- yyval.command = yyvsp[-1].command;
- ;
- break;}
-case 44:
-#line 462 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 45:
-#line 464 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 46:
-#line 466 "./parse.y"
-{ yyval.command = make_while_command (yyvsp[-3].command, yyvsp[-1].command); ;
- break;}
-case 47:
-#line 468 "./parse.y"
-{ yyval.command = make_until_command (yyvsp[-3].command, yyvsp[-1].command); ;
- break;}
-case 48:
-#line 470 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 49:
-#line 472 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 50:
-#line 474 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 51:
-#line 476 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 52:
-#line 478 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 53:
-#line 482 "./parse.y"
-{ yyval.command = make_for_command (yyvsp[-4].word, add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), yyvsp[-1].command); ;
- break;}
-case 54:
-#line 484 "./parse.y"
-{ yyval.command = make_for_command (yyvsp[-4].word, add_string_to_list ("$@", (WORD_LIST *)NULL), yyvsp[-1].command); ;
- break;}
-case 55:
-#line 486 "./parse.y"
-{ yyval.command = make_for_command (yyvsp[-5].word, add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), yyvsp[-1].command); ;
- break;}
-case 56:
-#line 488 "./parse.y"
-{ yyval.command = make_for_command (yyvsp[-5].word, add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), yyvsp[-1].command); ;
- break;}
-case 57:
-#line 490 "./parse.y"
-{ yyval.command = make_for_command (yyvsp[-8].word, REVERSE_LIST (yyvsp[-5].word_list, WORD_LIST *), yyvsp[-1].command); ;
- break;}
-case 58:
-#line 492 "./parse.y"
-{ yyval.command = make_for_command (yyvsp[-8].word, REVERSE_LIST (yyvsp[-5].word_list, WORD_LIST *), yyvsp[-1].command); ;
- break;}
-case 59:
-#line 496 "./parse.y"
-{
- yyval.command = make_select_command (yyvsp[-4].word, add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), yyvsp[-1].command);
- ;
- break;}
-case 60:
-#line 500 "./parse.y"
-{
- yyval.command = make_select_command (yyvsp[-4].word, add_string_to_list ("$@", (WORD_LIST *)NULL), yyvsp[-1].command);
- ;
- break;}
-case 61:
-#line 504 "./parse.y"
-{
- yyval.command = make_select_command (yyvsp[-5].word, add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), yyvsp[-1].command);
- ;
- break;}
-case 62:
-#line 508 "./parse.y"
-{
- yyval.command = make_select_command (yyvsp[-5].word, add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), yyvsp[-1].command);
- ;
- break;}
-case 63:
-#line 512 "./parse.y"
-{
- yyval.command = make_select_command (yyvsp[-8].word, (WORD_LIST *)reverse_list (yyvsp[-5].word_list), yyvsp[-1].command);
- ;
- break;}
-case 64:
-#line 516 "./parse.y"
-{
- yyval.command = make_select_command (yyvsp[-8].word, (WORD_LIST *)reverse_list (yyvsp[-5].word_list), yyvsp[-1].command);
- ;
- break;}
-case 65:
-#line 522 "./parse.y"
-{ yyval.command = make_case_command (yyvsp[-4].word, (PATTERN_LIST *)NULL); ;
- break;}
-case 66:
-#line 524 "./parse.y"
-{ yyval.command = make_case_command (yyvsp[-5].word, yyvsp[-2].pattern); ;
- break;}
-case 67:
-#line 526 "./parse.y"
-{ yyval.command = make_case_command (yyvsp[-4].word, yyvsp[-1].pattern); ;
- break;}
-case 68:
-#line 530 "./parse.y"
-{ yyval.command = make_function_def (yyvsp[-4].word, yyvsp[0].command, function_dstart, function_bstart); ;
- break;}
-case 69:
-#line 534 "./parse.y"
-{ yyval.command = make_function_def (yyvsp[-4].word, yyvsp[0].command, function_dstart, function_bstart); ;
- break;}
-case 70:
-#line 537 "./parse.y"
-{ yyval.command = make_function_def (yyvsp[-2].word, yyvsp[0].command, function_dstart, function_bstart); ;
- break;}
-case 71:
-#line 541 "./parse.y"
-{ yyvsp[-1].command->flags |= CMD_WANT_SUBSHELL; yyval.command = yyvsp[-1].command; ;
- break;}
-case 72:
-#line 545 "./parse.y"
-{ yyval.command = make_if_command (yyvsp[-3].command, yyvsp[-1].command, (COMMAND *)NULL); ;
- break;}
-case 73:
-#line 547 "./parse.y"
-{ yyval.command = make_if_command (yyvsp[-5].command, yyvsp[-3].command, yyvsp[-1].command); ;
- break;}
-case 74:
-#line 549 "./parse.y"
-{ yyval.command = make_if_command (yyvsp[-4].command, yyvsp[-2].command, yyvsp[-1].command); ;
- break;}
-case 75:
-#line 554 "./parse.y"
-{ yyval.command = make_group_command (yyvsp[-1].command); ;
- break;}
-case 76:
-#line 558 "./parse.y"
-{ yyval.command = make_if_command (yyvsp[-2].command, yyvsp[0].command, (COMMAND *)NULL); ;
- break;}
-case 77:
-#line 560 "./parse.y"
-{ yyval.command = make_if_command (yyvsp[-4].command, yyvsp[-2].command, yyvsp[0].command); ;
- break;}
-case 78:
-#line 562 "./parse.y"
-{ yyval.command = make_if_command (yyvsp[-3].command, yyvsp[-1].command, yyvsp[0].command); ;
- break;}
-case 80:
-#line 567 "./parse.y"
-{ yyvsp[0].pattern->next = yyvsp[-1].pattern; yyval.pattern = yyvsp[0].pattern; ;
- break;}
-case 81:
-#line 571 "./parse.y"
-{ yyval.pattern = make_pattern_list (yyvsp[-2].word_list, yyvsp[0].command); ;
- break;}
-case 82:
-#line 573 "./parse.y"
-{ yyval.pattern = make_pattern_list (yyvsp[-2].word_list, (COMMAND *)NULL); ;
- break;}
-case 83:
-#line 575 "./parse.y"
-{ yyval.pattern = make_pattern_list (yyvsp[-2].word_list, yyvsp[0].command); ;
- break;}
-case 84:
-#line 577 "./parse.y"
-{ yyval.pattern = make_pattern_list (yyvsp[-2].word_list, (COMMAND *)NULL); ;
- break;}
-case 86:
-#line 582 "./parse.y"
-{ yyvsp[-1].pattern->next = yyvsp[-2].pattern; yyval.pattern = yyvsp[-1].pattern; ;
- break;}
-case 87:
-#line 586 "./parse.y"
-{ yyval.word_list = make_word_list (yyvsp[0].word, (WORD_LIST *)NULL); ;
- break;}
-case 88:
-#line 588 "./parse.y"
-{ yyval.word_list = make_word_list (yyvsp[0].word, yyvsp[-2].word_list); ;
- break;}
-case 89:
-#line 597 "./parse.y"
-{
- yyval.command = yyvsp[0].command;
- if (need_here_doc)
- gather_here_documents ();
- ;
- break;}
-case 91:
-#line 606 "./parse.y"
-{
- yyval.command = yyvsp[0].command;
- ;
- break;}
-case 93:
-#line 613 "./parse.y"
-{
- if (yyvsp[-2].command->type == cm_connection)
- yyval.command = connect_async_list (yyvsp[-2].command, (COMMAND *)NULL, '&');
- else
- yyval.command = command_connect (yyvsp[-2].command, (COMMAND *)NULL, '&');
- ;
- break;}
-case 95:
-#line 624 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, AND_AND); ;
- break;}
-case 96:
-#line 626 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, OR_OR); ;
- break;}
-case 97:
-#line 628 "./parse.y"
-{
- if (yyvsp[-3].command->type == cm_connection)
- yyval.command = connect_async_list (yyvsp[-3].command, yyvsp[0].command, '&');
- else
- yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, '&');
- ;
- break;}
-case 98:
-#line 635 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, ';'); ;
- break;}
-case 99:
-#line 637 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, ';'); ;
- break;}
-case 100:
-#line 639 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 106:
-#line 658 "./parse.y"
-{
- yyval.command = yyvsp[0].command;
- if (need_here_doc)
- gather_here_documents ();
- ;
- break;}
-case 107:
-#line 664 "./parse.y"
-{
- if (yyvsp[-1].command->type == cm_connection)
- yyval.command = connect_async_list (yyvsp[-1].command, (COMMAND *)NULL, '&');
- else
- yyval.command = command_connect (yyvsp[-1].command, (COMMAND *)NULL, '&');
- if (need_here_doc)
- gather_here_documents ();
- ;
- break;}
-case 108:
-#line 673 "./parse.y"
-{
- yyval.command = yyvsp[-1].command;
- if (need_here_doc)
- gather_here_documents ();
- ;
- break;}
-case 109:
-#line 681 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, AND_AND); ;
- break;}
-case 110:
-#line 683 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, OR_OR); ;
- break;}
-case 111:
-#line 685 "./parse.y"
-{
- if (yyvsp[-2].command->type == cm_connection)
- yyval.command = connect_async_list (yyvsp[-2].command, yyvsp[0].command, '&');
- else
- yyval.command = command_connect (yyvsp[-2].command, yyvsp[0].command, '&');
- ;
- break;}
-case 112:
-#line 692 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-2].command, yyvsp[0].command, ';'); ;
- break;}
-case 113:
-#line 695 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 114:
-#line 699 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 115:
-#line 701 "./parse.y"
-{
- yyvsp[0].command->flags |= CMD_INVERT_RETURN;
- yyval.command = yyvsp[0].command;
- ;
- break;}
-case 116:
-#line 706 "./parse.y"
-{
- yyvsp[0].command->flags |= yyvsp[-1].number;
- yyval.command = yyvsp[0].command;
- ;
- break;}
-case 117:
-#line 711 "./parse.y"
-{
- yyvsp[0].command->flags |= yyvsp[-2].number;
- yyval.command = yyvsp[0].command;
- ;
- break;}
-case 118:
-#line 716 "./parse.y"
-{
- yyvsp[0].command->flags |= yyvsp[-1].number|CMD_INVERT_RETURN;
- yyval.command = yyvsp[0].command;
- ;
- break;}
-case 119:
-#line 724 "./parse.y"
-{ yyval.command = command_connect (yyvsp[-3].command, yyvsp[0].command, '|'); ;
- break;}
-case 120:
-#line 726 "./parse.y"
-{ yyval.command = yyvsp[0].command; ;
- break;}
-case 121:
-#line 730 "./parse.y"
-{ yyval.number = CMD_TIME_PIPELINE; ;
- break;}
-case 122:
-#line 732 "./parse.y"
-{ yyval.number = CMD_TIME_PIPELINE|CMD_TIME_POSIX; ;
- break;}
-}
- /* the action file gets copied in in place of this dollarsign */
-#line 498 "/usr/local/lib/bison.simple"
-\f
- yyvsp -= yylen;
- yyssp -= yylen;
-#ifdef YYLSP_NEEDED
- yylsp -= yylen;
-#endif
+ case 7:
+#line 417 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.word_list) = make_word_list ((yyvsp[(2) - (2)].word), (yyvsp[(1) - (2)].word_list)); }
+ break;
-#if YYDEBUG != 0
- if (yydebug)
+ case 8:
+#line 421 "/Users/chet/src/bash/src/parse.y"
{
- short *ssp1 = yyss - 1;
- fprintf (stderr, "state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
-#endif
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (1, r_output_direction, redir);
+ }
+ break;
- *++yyvsp = yyval;
-
-#ifdef YYLSP_NEEDED
- yylsp++;
- if (yylen == 0)
+ case 9:
+#line 426 "/Users/chet/src/bash/src/parse.y"
{
- yylsp->first_line = yylloc.first_line;
- yylsp->first_column = yylloc.first_column;
- yylsp->last_line = (yylsp-1)->last_line;
- yylsp->last_column = (yylsp-1)->last_column;
- yylsp->text = 0;
- }
- else
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (0, r_input_direction, redir);
+ }
+ break;
+
+ case 10:
+#line 431 "/Users/chet/src/bash/src/parse.y"
{
- yylsp->last_line = (yylsp+yylen-1)->last_line;
- yylsp->last_column = (yylsp+yylen-1)->last_column;
- }
-#endif
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_output_direction, redir);
+ }
+ break;
- /* Now "shift" the result of the reduction.
- Determine what state that goes to,
- based on the state we popped back to
- and the rule number reduced by. */
+ case 11:
+#line 436 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_input_direction, redir);
+ }
+ break;
- yyn = yyr1[yyn];
+ case 12:
+#line 441 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (1, r_appending_to, redir);
+ }
+ break;
- yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
- if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
- yystate = yytable[yystate];
- else
- yystate = yydefgoto[yyn - YYNTBASE];
+ case 13:
+#line 446 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_appending_to, redir);
+ }
+ break;
- goto yynewstate;
+ case 14:
+#line 451 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (0, r_reading_until, redir);
+ redir_stack[need_here_doc++] = (yyval.redirect);
+ }
+ break;
+
+ case 15:
+#line 457 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_reading_until, redir);
+ redir_stack[need_here_doc++] = (yyval.redirect);
+ }
+ break;
+
+ case 16:
+#line 463 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (0, r_reading_string, redir);
+ }
+ break;
-yyerrlab: /* here on detecting error */
+ case 17:
+#line 468 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_reading_string, redir);
+ }
+ break;
- if (! yyerrstatus)
- /* If not already recovering from an error, report this error. */
+ case 18:
+#line 473 "/Users/chet/src/bash/src/parse.y"
{
- ++yynerrs;
+ redir.dest = (yyvsp[(2) - (2)].number);
+ (yyval.redirect) = make_redirection (0, r_duplicating_input, redir);
+ }
+ break;
-#ifdef YYERROR_VERBOSE
- yyn = yypact[yystate];
+ case 19:
+#line 478 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.dest = (yyvsp[(3) - (3)].number);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_input, redir);
+ }
+ break;
- if (yyn > YYFLAG && yyn < YYLAST)
- {
- int size = 0;
- char *msg;
- int x, count;
-
- count = 0;
- /* Start X at -yyn if nec to avoid negative indexes in yycheck. */
- for (x = (yyn < 0 ? -yyn : 0);
- x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- size += strlen(yytname[x]) + 15, count++;
- msg = (char *) malloc(size + 15);
- if (msg != 0)
- {
- strcpy(msg, "parse error");
+ case 20:
+#line 483 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.dest = (yyvsp[(2) - (2)].number);
+ (yyval.redirect) = make_redirection (1, r_duplicating_output, redir);
+ }
+ break;
- if (count < 5)
- {
- count = 0;
- for (x = (yyn < 0 ? -yyn : 0);
- x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- {
- strcat(msg, count == 0 ? ", expecting `" : " or `");
- strcat(msg, yytname[x]);
- strcat(msg, "'");
- count++;
- }
- }
- yyerror(msg);
- free(msg);
- }
- else
- yyerror ("parse error; also virtual memory exceeded");
- }
- else
-#endif /* YYERROR_VERBOSE */
- yyerror("parse error");
- }
+ case 21:
+#line 488 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.dest = (yyvsp[(3) - (3)].number);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_output, redir);
+ }
+ break;
- goto yyerrlab1;
-yyerrlab1: /* here on error raised explicitly by an action */
+ case 22:
+#line 493 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (0, r_duplicating_input_word, redir);
+ }
+ break;
- if (yyerrstatus == 3)
+ case 23:
+#line 498 "/Users/chet/src/bash/src/parse.y"
{
- /* if just tried and failed to reuse lookahead token after an error, discard it. */
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_input_word, redir);
+ }
+ break;
- /* return failure if at end of input */
- if (yychar == YYEOF)
- YYABORT;
+ case 24:
+#line 503 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (1, r_duplicating_output_word, redir);
+ }
+ break;
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
-#endif
+ case 25:
+#line 508 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_output_word, redir);
+ }
+ break;
- yychar = YYEMPTY;
- }
+ case 26:
+#line 513 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection
+ (0, r_deblank_reading_until, redir);
+ redir_stack[need_here_doc++] = (yyval.redirect);
+ }
+ break;
- /* Else will try to reuse lookahead token
- after shifting the error token. */
+ case 27:
+#line 520 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection
+ ((yyvsp[(1) - (3)].number), r_deblank_reading_until, redir);
+ redir_stack[need_here_doc++] = (yyval.redirect);
+ }
+ break;
+
+ case 28:
+#line 527 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.dest = 0;
+ (yyval.redirect) = make_redirection (1, r_close_this, redir);
+ }
+ break;
- yyerrstatus = 3; /* Each real token shifted decrements this */
+ case 29:
+#line 532 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.dest = 0;
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_close_this, redir);
+ }
+ break;
- goto yyerrhandle;
+ case 30:
+#line 537 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.dest = 0;
+ (yyval.redirect) = make_redirection (0, r_close_this, redir);
+ }
+ break;
-yyerrdefault: /* current state does not do anything special for the error token. */
+ case 31:
+#line 542 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.dest = 0;
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_close_this, redir);
+ }
+ break;
-#if 0
- /* This is wrong; only states that explicitly want error tokens
- should shift them. */
- yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
- if (yyn) goto yydefault;
-#endif
+ case 32:
+#line 547 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (1, r_err_and_out, redir);
+ }
+ break;
-yyerrpop: /* pop the current state because it cannot handle the error token */
+ case 33:
+#line 552 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (1, r_append_err_and_out, redir);
+ }
+ break;
- if (yyssp == yyss) YYABORT;
- yyvsp--;
- yystate = *--yyssp;
-#ifdef YYLSP_NEEDED
- yylsp--;
-#endif
+ case 34:
+#line 557 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_input_output, redir);
+ }
+ break;
-#if YYDEBUG != 0
- if (yydebug)
+ case 35:
+#line 562 "/Users/chet/src/bash/src/parse.y"
{
- short *ssp1 = yyss - 1;
- fprintf (stderr, "Error: state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
-#endif
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (0, r_input_output, redir);
+ }
+ break;
-yyerrhandle:
+ case 36:
+#line 567 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(2) - (2)].word);
+ (yyval.redirect) = make_redirection (1, r_output_force, redir);
+ }
+ break;
- yyn = yypact[yystate];
- if (yyn == YYFLAG)
- goto yyerrdefault;
+ case 37:
+#line 572 "/Users/chet/src/bash/src/parse.y"
+ {
+ redir.filename = (yyvsp[(3) - (3)].word);
+ (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_output_force, redir);
+ }
+ break;
+
+ case 38:
+#line 579 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.element).word = (yyvsp[(1) - (1)].word); (yyval.element).redirect = 0; }
+ break;
+
+ case 39:
+#line 581 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.element).word = (yyvsp[(1) - (1)].word); (yyval.element).redirect = 0; }
+ break;
+
+ case 40:
+#line 583 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.element).redirect = (yyvsp[(1) - (1)].redirect); (yyval.element).word = 0; }
+ break;
+
+ case 41:
+#line 587 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.redirect) = (yyvsp[(1) - (1)].redirect);
+ }
+ break;
- yyn += YYTERROR;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
- goto yyerrdefault;
+ case 42:
+#line 591 "/Users/chet/src/bash/src/parse.y"
+ {
+ register REDIRECT *t;
- yyn = yytable[yyn];
- if (yyn < 0)
+ for (t = (yyvsp[(1) - (2)].redirect); t->next; t = t->next)
+ ;
+ t->next = (yyvsp[(2) - (2)].redirect);
+ (yyval.redirect) = (yyvsp[(1) - (2)].redirect);
+ }
+ break;
+
+ case 43:
+#line 602 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_simple_command ((yyvsp[(1) - (1)].element), (COMMAND *)NULL); }
+ break;
+
+ case 44:
+#line 604 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_simple_command ((yyvsp[(2) - (2)].element), (yyvsp[(1) - (2)].command)); }
+ break;
+
+ case 45:
+#line 608 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = clean_simple_command ((yyvsp[(1) - (1)].command)); }
+ break;
+
+ case 46:
+#line 610 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 47:
+#line 612 "/Users/chet/src/bash/src/parse.y"
{
- if (yyn == YYFLAG)
- goto yyerrpop;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrpop;
+ COMMAND *tc;
- if (yyn == YYFINAL)
- YYACCEPT;
+ tc = (yyvsp[(1) - (2)].command);
+ if (tc->redirects)
+ {
+ register REDIRECT *t;
+ for (t = tc->redirects; t->next; t = t->next)
+ ;
+ t->next = (yyvsp[(2) - (2)].redirect);
+ }
+ else
+ tc->redirects = (yyvsp[(2) - (2)].redirect);
+ (yyval.command) = (yyvsp[(1) - (2)].command);
+ }
+ break;
+
+ case 48:
+#line 628 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 49:
+#line 630 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 50:
+#line 634 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 51:
+#line 636 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 52:
+#line 638 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_while_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command)); }
+ break;
+
+ case 53:
+#line 640 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_until_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command)); }
+ break;
+
+ case 54:
+#line 642 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 55:
+#line 644 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 56:
+#line 646 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 57:
+#line 648 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 58:
+#line 650 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 59:
+#line 652 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 60:
+#line 654 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 61:
+#line 658 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-#if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting error token, ");
-#endif
+ case 62:
+#line 663 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
- *++yyvsp = yylval;
-#ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
-#endif
+ case 63:
+#line 668 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
- yystate = yyn;
- goto yynewstate;
-}
-#line 734 "./parse.y"
+ case 64:
+#line 673 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
+ case 65:
+#line 678 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Possible states for the parser that require it to do special things. */
-#define PST_CASEPAT 0x001 /* in a case pattern list */
-#define PST_ALEXPNEXT 0x002 /* expand next word for aliases */
-#define PST_ALLOWOPNBRC 0x004 /* allow open brace for function def */
-#define PST_NEEDCLOSBRC 0x008 /* need close brace */
-#define PST_DBLPAREN 0x010 /* double-paren parsing */
-#define PST_SUBSHELL 0x020 /* ( ... ) subshell */
-#define PST_CMDSUBST 0x040 /* $( ... ) command substitution */
-#define PST_CASESTMT 0x080 /* parsing a case statement */
+ case 66:
+#line 683 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Initial size to allocate for tokens, and the
- amount to grow them by. */
-#define TOKEN_DEFAULT_GROW_SIZE 512
+ case 67:
+#line 688 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (9)].word), (WORD_LIST *)NULL, (yyvsp[(8) - (9)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Shell meta-characters that, when unquoted, separate words. */
-#define shellmeta(c) (strchr ("()<>;&|", (c)) != 0)
-#define shellbreak(c) (strchr ("()<>;&| \t\n", (c)) != 0)
-#define shellquote(c) ((c) == '"' || (c) == '`' || (c) == '\'')
-#define shellexp(c) ((c) == '$' || (c) == '<' || (c) == '>')
+ case 68:
+#line 693 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_for_command ((yyvsp[(2) - (9)].word), (WORD_LIST *)NULL, (yyvsp[(8) - (9)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* The token currently being read. */
-static int current_token;
+ case 69:
+#line 700 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_arith_for_command ((yyvsp[(2) - (7)].word_list), (yyvsp[(6) - (7)].command), arith_for_lineno);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* The last read token, or NULL. read_token () uses this for context
- checking. */
-static int last_read_token;
+ case 70:
+#line 705 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_arith_for_command ((yyvsp[(2) - (7)].word_list), (yyvsp[(6) - (7)].command), arith_for_lineno);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* The token read prior to last_read_token. */
-static int token_before_that;
+ case 71:
+#line 710 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_arith_for_command ((yyvsp[(2) - (5)].word_list), (yyvsp[(4) - (5)].command), arith_for_lineno);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* The token read prior to token_before_that. */
-static int two_tokens_ago;
+ case 72:
+#line 715 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_arith_for_command ((yyvsp[(2) - (5)].word_list), (yyvsp[(4) - (5)].command), arith_for_lineno);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* If non-zero, it is the token that we want read_token to return
- regardless of what text is (or isn't) present to be read. This
- is reset by read_token. If token_to_read == WORD or
- ASSIGNMENT_WORD, yylval.word should be set to word_desc_to_read. */
-static int token_to_read;
-static WORD_DESC *word_desc_to_read;
+ case 73:
+#line 722 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_select_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* The current parser state. */
-static int parser_state;
+ case 74:
+#line 727 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_select_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Global var is non-zero when end of file has been reached. */
-int EOF_Reached = 0;
+ case 75:
+#line 732 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_select_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-void
-debug_parser (i)
- int i;
-{
-#if YYDEBUG != 0
- yydebug = i;
-#endif
-}
+ case 76:
+#line 737 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_select_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* yy_getc () returns the next available character from input or EOF.
- yy_ungetc (c) makes `c' the next character to read.
- init_yy_io (get, unget, type, location) makes the function GET the
- installed function for getting the next character, makes UNGET the
- installed function for un-getting a character, sets the type of stream
- (either string or file) from TYPE, and makes LOCATION point to where
- the input is coming from. */
+ case 77:
+#line 742 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_select_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Unconditionally returns end-of-file. */
-int
-return_EOF ()
-{
- return (EOF);
-}
+ case 78:
+#line 747 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_select_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Variable containing the current get and unget functions.
- See ./input.h for a clearer description. */
-BASH_INPUT bash_input;
+ case 79:
+#line 754 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_case_command ((yyvsp[(2) - (6)].word), (PATTERN_LIST *)NULL, word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Set all of the fields in BASH_INPUT to NULL. Free bash_input.name if it
- is non-null, avoiding a memory leak. */
-void
-initialize_bash_input ()
-{
- bash_input.type = st_none;
- FREE (bash_input.name);
- bash_input.name = (char *)NULL;
- bash_input.location.file = (FILE *)NULL;
- bash_input.location.string = (char *)NULL;
- bash_input.getter = (Function *)NULL;
- bash_input.ungetter = (Function *)NULL;
-}
+ case 80:
+#line 759 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_case_command ((yyvsp[(2) - (7)].word), (yyvsp[(5) - (7)].pattern), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
-/* Set the contents of the current bash input stream from
- GET, UNGET, TYPE, NAME, and LOCATION. */
-void
-init_yy_io (get, unget, type, name, location)
- Function *get, *unget;
- int type;
- char *name;
- INPUT_STREAM location;
-{
- bash_input.type = type;
- FREE (bash_input.name);
- bash_input.name = name ? savestring (name) : (char *)NULL;
+ case 81:
+#line 764 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_case_command ((yyvsp[(2) - (6)].word), (yyvsp[(5) - (6)].pattern), word_lineno[word_top]);
+ if (word_top > 0) word_top--;
+ }
+ break;
+
+ case 82:
+#line 771 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_function_def ((yyvsp[(1) - (5)].word), (yyvsp[(5) - (5)].command), function_dstart, function_bstart); }
+ break;
+
+ case 83:
+#line 774 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_function_def ((yyvsp[(2) - (6)].word), (yyvsp[(6) - (6)].command), function_dstart, function_bstart); }
+ break;
+
+ case 84:
+#line 777 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_function_def ((yyvsp[(2) - (4)].word), (yyvsp[(4) - (4)].command), function_dstart, function_bstart); }
+ break;
+
+ case 85:
+#line 781 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 86:
+#line 783 "/Users/chet/src/bash/src/parse.y"
+ {
+ COMMAND *tc;
- /* XXX */
-#if defined (CRAY)
- memcpy((char *)&bash_input.location.string, (char *)&location.string, sizeof(location));
-#else
- bash_input.location = location;
-#endif
- bash_input.getter = get;
- bash_input.ungetter = unget;
-}
+ tc = (yyvsp[(1) - (2)].command);
+ /* According to Posix.2 3.9.5, redirections
+ specified after the body of a function should
+ be attached to the function and performed when
+ the function is executed, not as part of the
+ function definition command. */
+ /* XXX - I don't think it matters, but we might
+ want to change this in the future to avoid
+ problems differentiating between a function
+ definition with a redirection and a function
+ definition containing a single command with a
+ redirection. The two are semantically equivalent,
+ though -- the only difference is in how the
+ command printing code displays the redirections. */
+ if (tc->redirects)
+ {
+ register REDIRECT *t;
+ for (t = tc->redirects; t->next; t = t->next)
+ ;
+ t->next = (yyvsp[(2) - (2)].redirect);
+ }
+ else
+ tc->redirects = (yyvsp[(2) - (2)].redirect);
+ (yyval.command) = (yyvsp[(1) - (2)].command);
+ }
+ break;
-/* Call this to get the next character of input. */
-int
-yy_getc ()
-{
- return (*(bash_input.getter)) ();
-}
+ case 87:
+#line 814 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_subshell_command ((yyvsp[(2) - (3)].command));
+ (yyval.command)->flags |= CMD_WANT_SUBSHELL;
+ }
+ break;
-/* Call this to unget C. That is, to make C the next character
- to be read. */
-int
-yy_ungetc (c)
- int c;
-{
- return (*(bash_input.ungetter)) (c);
-}
+ case 88:
+#line 821 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_coproc_command ("COPROC", (yyvsp[(2) - (2)].command));
+ (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
+ }
+ break;
-#if defined (BUFFERED_INPUT)
-int
-input_file_descriptor ()
-{
- switch (bash_input.type)
+ case 89:
+#line 826 "/Users/chet/src/bash/src/parse.y"
{
- case st_stream:
- return (fileno (bash_input.location.file));
- case st_bstream:
- return (bash_input.location.buffered_fd);
- case st_stdin:
- default:
- return (fileno (stdin));
- }
-}
-#endif /* BUFFERED_INPUT */
+ COMMAND *tc;
-/* **************************************************************** */
-/* */
-/* Let input be read from readline (). */
-/* */
-/* **************************************************************** */
+ tc = (yyvsp[(2) - (3)].command);
+ if (tc->redirects)
+ {
+ register REDIRECT *t;
+ for (t = tc->redirects; t->next; t = t->next)
+ ;
+ t->next = (yyvsp[(3) - (3)].redirect);
+ }
+ else
+ tc->redirects = (yyvsp[(3) - (3)].redirect);
+ (yyval.command) = make_coproc_command ("COPROC", (yyvsp[(2) - (3)].command));
+ (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
+ }
+ break;
+
+ case 90:
+#line 843 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_coproc_command ((yyvsp[(2) - (3)].word)->word, (yyvsp[(3) - (3)].command));
+ (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
+ }
+ break;
-#if defined (READLINE)
-char *current_readline_prompt = (char *)NULL;
-char *current_readline_line = (char *)NULL;
-int current_readline_line_index = 0;
+ case 91:
+#line 848 "/Users/chet/src/bash/src/parse.y"
+ {
+ COMMAND *tc;
-static int
-yy_readline_get ()
-{
- SigHandler *old_sigint;
- int line_len, c;
+ tc = (yyvsp[(3) - (4)].command);
+ if (tc->redirects)
+ {
+ register REDIRECT *t;
+ for (t = tc->redirects; t->next; t = t->next)
+ ;
+ t->next = (yyvsp[(4) - (4)].redirect);
+ }
+ else
+ tc->redirects = (yyvsp[(4) - (4)].redirect);
+ (yyval.command) = make_coproc_command ((yyvsp[(2) - (4)].word)->word, (yyvsp[(3) - (4)].command));
+ (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
+ }
+ break;
+
+ case 92:
+#line 865 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = make_coproc_command ("COPROC", clean_simple_command ((yyvsp[(2) - (2)].command)));
+ (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
+ }
+ break;
+
+ case 93:
+#line 872 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_if_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command), (COMMAND *)NULL); }
+ break;
+
+ case 94:
+#line 874 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_if_command ((yyvsp[(2) - (7)].command), (yyvsp[(4) - (7)].command), (yyvsp[(6) - (7)].command)); }
+ break;
+
+ case 95:
+#line 876 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_if_command ((yyvsp[(2) - (6)].command), (yyvsp[(4) - (6)].command), (yyvsp[(5) - (6)].command)); }
+ break;
+
+ case 96:
+#line 881 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_group_command ((yyvsp[(2) - (3)].command)); }
+ break;
+
+ case 97:
+#line 885 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_arith_command ((yyvsp[(1) - (1)].word_list)); }
+ break;
+
+ case 98:
+#line 889 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(2) - (3)].command); }
+ break;
+
+ case 99:
+#line 893 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_if_command ((yyvsp[(2) - (4)].command), (yyvsp[(4) - (4)].command), (COMMAND *)NULL); }
+ break;
+
+ case 100:
+#line 895 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_if_command ((yyvsp[(2) - (6)].command), (yyvsp[(4) - (6)].command), (yyvsp[(6) - (6)].command)); }
+ break;
+
+ case 101:
+#line 897 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = make_if_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command), (yyvsp[(5) - (5)].command)); }
+ break;
+
+ case 103:
+#line 902 "/Users/chet/src/bash/src/parse.y"
+ { (yyvsp[(2) - (2)].pattern)->next = (yyvsp[(1) - (2)].pattern); (yyval.pattern) = (yyvsp[(2) - (2)].pattern); }
+ break;
+
+ case 104:
+#line 906 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.pattern) = make_pattern_list ((yyvsp[(2) - (4)].word_list), (yyvsp[(4) - (4)].command)); }
+ break;
+
+ case 105:
+#line 908 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.pattern) = make_pattern_list ((yyvsp[(2) - (4)].word_list), (COMMAND *)NULL); }
+ break;
+
+ case 106:
+#line 910 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.pattern) = make_pattern_list ((yyvsp[(3) - (5)].word_list), (yyvsp[(5) - (5)].command)); }
+ break;
+
+ case 107:
+#line 912 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.pattern) = make_pattern_list ((yyvsp[(3) - (5)].word_list), (COMMAND *)NULL); }
+ break;
+
+ case 108:
+#line 916 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.pattern) = (yyvsp[(1) - (2)].pattern); }
+ break;
+
+ case 109:
+#line 918 "/Users/chet/src/bash/src/parse.y"
+ { (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); }
+ break;
+
+ case 110:
+#line 920 "/Users/chet/src/bash/src/parse.y"
+ { (yyvsp[(1) - (2)].pattern)->flags |= CASEPAT_FALLTHROUGH; (yyval.pattern) = (yyvsp[(1) - (2)].pattern); }
+ break;
+
+ case 111:
+#line 922 "/Users/chet/src/bash/src/parse.y"
+ { (yyvsp[(2) - (3)].pattern)->flags |= CASEPAT_FALLTHROUGH; (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); }
+ break;
+
+ case 112:
+#line 924 "/Users/chet/src/bash/src/parse.y"
+ { (yyvsp[(1) - (2)].pattern)->flags |= CASEPAT_TESTNEXT; (yyval.pattern) = (yyvsp[(1) - (2)].pattern); }
+ break;
+
+ case 113:
+#line 926 "/Users/chet/src/bash/src/parse.y"
+ { (yyvsp[(2) - (3)].pattern)->flags |= CASEPAT_TESTNEXT; (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); }
+ break;
+
+ case 114:
+#line 930 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.word_list) = make_word_list ((yyvsp[(1) - (1)].word), (WORD_LIST *)NULL); }
+ break;
+
+ case 115:
+#line 932 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.word_list) = make_word_list ((yyvsp[(3) - (3)].word), (yyvsp[(1) - (3)].word_list)); }
+ break;
+
+ case 116:
+#line 941 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = (yyvsp[(2) - (2)].command);
+ if (need_here_doc)
+ gather_here_documents ();
+ }
+ break;
- if (!current_readline_line)
+ case 118:
+#line 950 "/Users/chet/src/bash/src/parse.y"
{
- if (!bash_readline_initialized)
- initialize_readline ();
+ (yyval.command) = (yyvsp[(2) - (2)].command);
+ }
+ break;
-#if defined (JOB_CONTROL)
- if (job_control)
- give_terminal_to (shell_pgrp);
-#endif /* JOB_CONTROL */
+ case 120:
+#line 957 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(1) - (3)].command)->type == cm_connection)
+ (yyval.command) = connect_async_list ((yyvsp[(1) - (3)].command), (COMMAND *)NULL, '&');
+ else
+ (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (COMMAND *)NULL, '&');
+ }
+ break;
+
+ case 122:
+#line 968 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), AND_AND); }
+ break;
+
+ case 123:
+#line 970 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), OR_OR); }
+ break;
+
+ case 124:
+#line 972 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(1) - (4)].command)->type == cm_connection)
+ (yyval.command) = connect_async_list ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '&');
+ else
+ (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '&');
+ }
+ break;
+
+ case 125:
+#line 979 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), ';'); }
+ break;
+
+ case 126:
+#line 981 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), ';'); }
+ break;
+
+ case 127:
+#line 983 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 130:
+#line 991 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.number) = '\n'; }
+ break;
+
+ case 131:
+#line 993 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.number) = ';'; }
+ break;
+
+ case 132:
+#line 995 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.number) = yacc_EOF; }
+ break;
+
+ case 135:
+#line 1009 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = (yyvsp[(1) - (1)].command);
+ if (need_here_doc)
+ gather_here_documents ();
+ if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token)
+ {
+ global_command = (yyvsp[(1) - (1)].command);
+ eof_encountered = 0;
+ rewind_input_string ();
+ YYACCEPT;
+ }
+ }
+ break;
- if (signal_is_ignored (SIGINT) == 0)
- {
- old_sigint = (SigHandler *)set_signal_handler (SIGINT, sigint_sighandler);
- interrupt_immediately++;
- }
+ case 136:
+#line 1022 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(1) - (2)].command)->type == cm_connection)
+ (yyval.command) = connect_async_list ((yyvsp[(1) - (2)].command), (COMMAND *)NULL, '&');
+ else
+ (yyval.command) = command_connect ((yyvsp[(1) - (2)].command), (COMMAND *)NULL, '&');
+ if (need_here_doc)
+ gather_here_documents ();
+ if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token)
+ {
+ global_command = (yyvsp[(1) - (2)].command);
+ eof_encountered = 0;
+ rewind_input_string ();
+ YYACCEPT;
+ }
+ }
+ break;
- current_readline_line = readline (current_readline_prompt ?
- current_readline_prompt : "");
+ case 137:
+#line 1038 "/Users/chet/src/bash/src/parse.y"
+ {
+ (yyval.command) = (yyvsp[(1) - (2)].command);
+ if (need_here_doc)
+ gather_here_documents ();
+ if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token)
+ {
+ global_command = (yyvsp[(1) - (2)].command);
+ eof_encountered = 0;
+ rewind_input_string ();
+ YYACCEPT;
+ }
+ }
+ break;
- if (signal_is_ignored (SIGINT) == 0)
- {
- interrupt_immediately--;
- set_signal_handler (SIGINT, old_sigint);
- }
+ case 138:
+#line 1053 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), AND_AND); }
+ break;
-#if 0
- /* Reset the prompt to the decoded value of prompt_string_pointer. */
- reset_readline_prompt ();
-#endif
+ case 139:
+#line 1055 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), OR_OR); }
+ break;
- if (current_readline_line == 0)
- return (EOF);
+ case 140:
+#line 1057 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(1) - (3)].command)->type == cm_connection)
+ (yyval.command) = connect_async_list ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), '&');
+ else
+ (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), '&');
+ }
+ break;
+
+ case 141:
+#line 1064 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), ';'); }
+ break;
+
+ case 142:
+#line 1067 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 143:
+#line 1071 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 144:
+#line 1073 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(2) - (2)].command))
+ (yyvsp[(2) - (2)].command)->flags |= CMD_INVERT_RETURN;
+ (yyval.command) = (yyvsp[(2) - (2)].command);
+ }
+ break;
+
+ case 145:
+#line 1079 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(2) - (2)].command))
+ (yyvsp[(2) - (2)].command)->flags |= (yyvsp[(1) - (2)].number);
+ (yyval.command) = (yyvsp[(2) - (2)].command);
+ }
+ break;
+
+ case 146:
+#line 1085 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(3) - (3)].command))
+ (yyvsp[(3) - (3)].command)->flags |= (yyvsp[(1) - (3)].number)|CMD_INVERT_RETURN;
+ (yyval.command) = (yyvsp[(3) - (3)].command);
+ }
+ break;
+
+ case 147:
+#line 1091 "/Users/chet/src/bash/src/parse.y"
+ {
+ if ((yyvsp[(3) - (3)].command))
+ (yyvsp[(3) - (3)].command)->flags |= (yyvsp[(2) - (3)].number)|CMD_INVERT_RETURN;
+ (yyval.command) = (yyvsp[(3) - (3)].command);
+ }
+ break;
+
+ case 148:
+#line 1097 "/Users/chet/src/bash/src/parse.y"
+ {
+ ELEMENT x;
+
+ /* Boy, this is unclean. `time' by itself can
+ time a null command. We cheat and push a
+ newline back if the list_terminator was a newline
+ to avoid the double-newline problem (one to
+ terminate this, one to terminate the command) */
+ x.word = 0;
+ x.redirect = 0;
+ (yyval.command) = make_simple_command (x, (COMMAND *)NULL);
+ (yyval.command)->flags |= (yyvsp[(1) - (2)].number);
+ /* XXX - let's cheat and push a newline back */
+ if ((yyvsp[(2) - (2)].number) == '\n')
+ token_to_read = '\n';
+ }
+ break;
+
+ case 149:
+#line 1117 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '|'); }
+ break;
+
+ case 150:
+#line 1119 "/Users/chet/src/bash/src/parse.y"
+ {
+ /* Make cmd1 |& cmd2 equivalent to cmd1 2>&1 | cmd2 */
+ COMMAND *tc;
+ REDIRECTEE rd;
+ REDIRECT *r;
- current_readline_line_index = 0;
- line_len = strlen (current_readline_line);
+ tc = (yyvsp[(1) - (4)].command);
+ rd.dest = 1;
+ r = make_redirection (2, r_duplicating_output, rd);
+ if (tc->redirects)
+ {
+ register REDIRECT *t;
+ for (t = tc->redirects; t->next; t = t->next)
+ ;
+ t->next = r;
+ }
+ else
+ tc->redirects = r;
- current_readline_line = xrealloc (current_readline_line, 2 + line_len);
- current_readline_line[line_len++] = '\n';
- current_readline_line[line_len] = '\0';
- }
+ (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '|');
+ }
+ break;
- if (current_readline_line[current_readline_line_index] == 0)
- {
- free (current_readline_line);
- current_readline_line = (char *)NULL;
- return (yy_readline_get ());
+ case 151:
+#line 1141 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.command) = (yyvsp[(1) - (1)].command); }
+ break;
+
+ case 152:
+#line 1145 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.number) = CMD_TIME_PIPELINE; }
+ break;
+
+ case 153:
+#line 1147 "/Users/chet/src/bash/src/parse.y"
+ { (yyval.number) = CMD_TIME_PIPELINE|CMD_TIME_POSIX; }
+ break;
+
+
+/* Line 1267 of yacc.c. */
+#line 3193 "y.tab.c"
+ default: break;
}
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+
+ *++yyvsp = yyval;
+
+
+ /* Now `shift' the result of the reduction. Determine what state
+ that goes to, based on the state we popped back to and the rule
+ number reduced by. */
+
+ yyn = yyr1[yyn];
+
+ yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+ if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+ yystate = yytable[yystate];
else
+ yystate = yydefgoto[yyn - YYNTOKENS];
+
+ goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus)
{
- c = (unsigned char)current_readline_line[current_readline_line_index++];
- return (c);
+ ++yynerrs;
+#if ! YYERROR_VERBOSE
+ yyerror (YY_("syntax error"));
+#else
+ {
+ YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+ if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+ {
+ YYSIZE_T yyalloc = 2 * yysize;
+ if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+ yyalloc = YYSTACK_ALLOC_MAXIMUM;
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+ if (yymsg)
+ yymsg_alloc = yyalloc;
+ else
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ }
+
+ if (0 < yysize && yysize <= yymsg_alloc)
+ {
+ (void) yysyntax_error (yymsg, yystate, yychar);
+ yyerror (yymsg);
+ }
+ else
+ {
+ yyerror (YY_("syntax error"));
+ if (yysize != 0)
+ goto yyexhaustedlab;
+ }
+ }
+#endif
}
-}
-static int
-yy_readline_unget (c)
- int c;
-{
- if (current_readline_line_index && current_readline_line)
- current_readline_line[--current_readline_line_index] = c;
- return (c);
-}
-void
-with_input_from_stdin ()
-{
- INPUT_STREAM location;
- if (bash_input.type != st_stdin && stream_on_stack (st_stdin) == 0)
+ if (yyerrstatus == 3)
{
- location.string = current_readline_line;
- init_yy_io (yy_readline_get, yy_readline_unget,
- st_stdin, "readline stdin", location);
+ /* If just tried and failed to reuse look-ahead token after an
+ error, discard it. */
+
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval);
+ yychar = YYEMPTY;
+ }
}
-}
-#else /* !READLINE */
+ /* Else will try to reuse look-ahead token after shifting the error
+ token. */
+ goto yyerrlab1;
-void
-with_input_from_stdin ()
-{
- with_input_from_stream (stdin, "stdin");
-}
-#endif /* !READLINE */
-/* **************************************************************** */
-/* */
-/* Let input come from STRING. STRING is zero terminated. */
-/* */
-/* **************************************************************** */
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
-static int
-yy_string_get ()
-{
- register char *string;
- register int c;
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
+ goto yyerrorlab;
- string = bash_input.location.string;
- c = EOF;
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+ yystate = *yyssp;
+ goto yyerrlab1;
- /* If the string doesn't exist, or is empty, EOF found. */
- if (string && *string)
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
+ yyerrstatus = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
{
- c = *(unsigned char *)string++;
- bash_input.location.string = string;
+ yyn = yypact[yystate];
+ if (yyn != YYPACT_NINF)
+ {
+ yyn += YYTERROR;
+ if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+ {
+ yyn = yytable[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yyssp == yyss)
+ YYABORT;
+
+
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp);
+ YYPOPSTACK (1);
+ yystate = *yyssp;
+ YY_STACK_PRINT (yyss, yyssp);
}
- return (c);
-}
-static int
-yy_string_unget (c)
- int c;
-{
- *(--bash_input.location.string) = c;
- return (c);
-}
+ if (yyn == YYFINAL)
+ YYACCEPT;
-void
-with_input_from_string (string, name)
- char *string, *name;
-{
- INPUT_STREAM location;
+ *++yyvsp = yylval;
- location.string = string;
- init_yy_io (yy_string_get, yy_string_unget, st_string, name, location);
-}
-/* **************************************************************** */
-/* */
-/* Let input come from STREAM. */
-/* */
-/* **************************************************************** */
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
-static int
-yy_stream_get ()
-{
- int result = EOF;
+ yystate = yyn;
+ goto yynewstate;
- if (bash_input.location.file)
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here. |
+`-------------------------------------*/
+yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here. |
+`-----------------------------------*/
+yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+#ifndef yyoverflow
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (YY_("memory exhausted"));
+ yyresult = 2;
+ /* Fall through. */
+#endif
+
+yyreturn:
+ if (yychar != YYEOF && yychar != YYEMPTY)
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval);
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ YYPOPSTACK (yylen);
+ YY_STACK_PRINT (yyss, yyssp);
+ while (yyssp != yyss)
{
-#if !defined (HAVE_RESTARTABLE_SYSCALLS)
- result = getc_with_restart (bash_input.location.file);
-#else /* HAVE_RESTARTABLE_SYSCALLS */
- result = getc (bash_input.location.file);
- result = (feof (bash_input.location.file)) ? EOF : (unsigned char)result;
-#endif /* HAVE_RESTARTABLE_SYSCALLS */
+ yydestruct ("Cleanup: popping",
+ yystos[*yyssp], yyvsp);
+ YYPOPSTACK (1);
}
- return (result);
+#ifndef yyoverflow
+ if (yyss != yyssa)
+ YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
}
-static int
-yy_stream_unget (c)
- int c;
-{
-#if !defined (HAVE_RESTARTABLE_SYSCALLS)
- return (ungetc_with_restart (c, bash_input.location.file));
-#else /* HAVE_RESTARTABLE_SYSCALLS */
- return (ungetc (c, bash_input.location.file));
-#endif /* HAVE_RESTARTABLE_SYSCALLS */
-}
-void
-with_input_from_stream (stream, name)
- FILE *stream;
- char *name;
-{
- INPUT_STREAM location;
+#line 1149 "/Users/chet/src/bash/src/parse.y"
- location.file = stream;
- init_yy_io (yy_stream_get, yy_stream_unget, st_stream, name, location);
-}
-typedef struct stream_saver {
- struct stream_saver *next;
- BASH_INPUT bash_input;
- int line;
-#if defined (BUFFERED_INPUT)
- BUFFERED_STREAM *bstream;
-#endif /* BUFFERED_INPUT */
-} STREAM_SAVER;
+/* Initial size to allocate for tokens, and the
+ amount to grow them by. */
+#define TOKEN_DEFAULT_INITIAL_SIZE 496
+#define TOKEN_DEFAULT_GROW_SIZE 512
-/* The globally known line number. */
-int line_number = 0;
+/* Should we call prompt_again? */
+#define SHOULD_PROMPT() \
+ (interactive && (bash_input.type == st_stdin || bash_input.type == st_stream))
-STREAM_SAVER *stream_list = (STREAM_SAVER *)NULL;
+#if defined (ALIAS)
+# define expanding_alias() (pushed_string_list && pushed_string_list->expander)
+#else
+# define expanding_alias() 0
+#endif
-void
-push_stream (reset_lineno)
- int reset_lineno;
-{
- STREAM_SAVER *saver = (STREAM_SAVER *)xmalloc (sizeof (STREAM_SAVER));
+/* Global var is non-zero when end of file has been reached. */
+int EOF_Reached = 0;
- xbcopy ((char *)&bash_input, (char *)&(saver->bash_input), sizeof (BASH_INPUT));
+#ifdef DEBUG
+static void
+debug_parser (i)
+ int i;
+{
+#if YYDEBUG != 0
+ yydebug = i;
+#endif
+}
+#endif
-#if defined (BUFFERED_INPUT)
- saver->bstream = (BUFFERED_STREAM *)NULL;
- /* If we have a buffered stream, clear out buffers[fd]. */
- if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0)
- {
- saver->bstream = buffers[bash_input.location.buffered_fd];
- buffers[bash_input.location.buffered_fd] = (BUFFERED_STREAM *)NULL;
- }
-#endif /* BUFFERED_INPUT */
+/* yy_getc () returns the next available character from input or EOF.
+ yy_ungetc (c) makes `c' the next character to read.
+ init_yy_io (get, unget, type, location) makes the function GET the
+ installed function for getting the next character, makes UNGET the
+ installed function for un-getting a character, sets the type of stream
+ (either string or file) from TYPE, and makes LOCATION point to where
+ the input is coming from. */
- saver->line = line_number;
- bash_input.name = (char *)NULL;
- saver->next = stream_list;
- stream_list = saver;
- EOF_Reached = 0;
- if (reset_lineno)
- line_number = 0;
+/* Unconditionally returns end-of-file. */
+int
+return_EOF ()
+{
+ return (EOF);
}
+/* Variable containing the current get and unget functions.
+ See ./input.h for a clearer description. */
+BASH_INPUT bash_input;
+
+/* Set all of the fields in BASH_INPUT to NULL. Free bash_input.name if it
+ is non-null, avoiding a memory leak. */
void
-pop_stream ()
+initialize_bash_input ()
{
- if (!stream_list)
- EOF_Reached = 1;
- else
- {
- STREAM_SAVER *saver = stream_list;
+ bash_input.type = st_none;
+ FREE (bash_input.name);
+ bash_input.name = (char *)NULL;
+ bash_input.location.file = (FILE *)NULL;
+ bash_input.location.string = (char *)NULL;
+ bash_input.getter = (sh_cget_func_t *)NULL;
+ bash_input.ungetter = (sh_cunget_func_t *)NULL;
+}
- EOF_Reached = 0;
- stream_list = stream_list->next;
+/* Set the contents of the current bash input stream from
+ GET, UNGET, TYPE, NAME, and LOCATION. */
+void
+init_yy_io (get, unget, type, name, location)
+ sh_cget_func_t *get;
+ sh_cunget_func_t *unget;
+ enum stream_type type;
+ const char *name;
+ INPUT_STREAM location;
+{
+ bash_input.type = type;
+ FREE (bash_input.name);
+ bash_input.name = name ? savestring (name) : (char *)NULL;
- init_yy_io (saver->bash_input.getter,
- saver->bash_input.ungetter,
- saver->bash_input.type,
- saver->bash_input.name,
- saver->bash_input.location);
+ /* XXX */
+#if defined (CRAY)
+ memcpy((char *)&bash_input.location.string, (char *)&location.string, sizeof(location));
+#else
+ bash_input.location = location;
+#endif
+ bash_input.getter = get;
+ bash_input.ungetter = unget;
+}
-#if defined (BUFFERED_INPUT)
- /* If we have a buffered stream, restore buffers[fd]. */
- /* If the input file descriptor was changed while this was on the
- save stack, update the buffered fd to the new file descriptor and
- re-establish the buffer <-> bash_input fd correspondence. */
- if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0)
- {
- if (bash_input_fd_changed)
- {
- bash_input_fd_changed = 0;
- if (default_buffered_input >= 0)
- {
- bash_input.location.buffered_fd = default_buffered_input;
- saver->bstream->b_fd = default_buffered_input;
- }
- }
- buffers[bash_input.location.buffered_fd] = saver->bstream;
- }
-#endif /* BUFFERED_INPUT */
+char *
+yy_input_name ()
+{
+ return (bash_input.name ? bash_input.name : "stdin");
+}
- line_number = saver->line;
+/* Call this to get the next character of input. */
+static int
+yy_getc ()
+{
+ return (*(bash_input.getter)) ();
+}
- FREE (saver->bash_input.name);
- free (saver);
- }
+/* Call this to unget C. That is, to make C the next character
+ to be read. */
+static int
+yy_ungetc (c)
+ int c;
+{
+ return (*(bash_input.ungetter)) (c);
}
-/* Return 1 if a stream of type TYPE is saved on the stack. */
+#if defined (BUFFERED_INPUT)
+#ifdef INCLUDE_UNUSED
int
-stream_on_stack (type)
- enum stream_type type;
+input_file_descriptor ()
{
- register STREAM_SAVER *s;
-
- for (s = stream_list; s; s = s->next)
- if (s->bash_input.type == type)
- return 1;
- return 0;
+ switch (bash_input.type)
+ {
+ case st_stream:
+ return (fileno (bash_input.location.file));
+ case st_bstream:
+ return (bash_input.location.buffered_fd);
+ case st_stdin:
+ default:
+ return (fileno (stdin));
+ }
}
+#endif
+#endif /* BUFFERED_INPUT */
-/*
- * This is used to inhibit alias expansion and reserved word recognition
- * inside case statement pattern lists. A `case statement pattern list' is:
- *
- * everything between the `in' in a `case word in' and the next ')'
- * or `esac'
- * everything between a `;;' and the next `)' or `esac'
- */
-
-#if defined (ALIAS)
+/* **************************************************************** */
+/* */
+/* Let input be read from readline (). */
+/* */
+/* **************************************************************** */
-#define END_OF_ALIAS 0
+#if defined (READLINE)
+char *current_readline_prompt = (char *)NULL;
+char *current_readline_line = (char *)NULL;
+int current_readline_line_index = 0;
-/*
- * Pseudo-global variables used in implementing token-wise alias expansion.
- */
+static int
+yy_readline_get ()
+{
+ SigHandler *old_sigint;
+ int line_len;
+ unsigned char c;
-/*
- * Pushing and popping strings. This works together with shell_getc to
- * implement alias expansion on a per-token basis.
- */
+ if (!current_readline_line)
+ {
+ if (!bash_readline_initialized)
+ initialize_readline ();
-typedef struct string_saver {
- struct string_saver *next;
- int expand_alias; /* Value to set expand_alias to when string is popped. */
- char *saved_line;
- alias_t *expander; /* alias that caused this line to be pushed. */
- int saved_line_size, saved_line_index, saved_line_terminator;
-} STRING_SAVER;
+#if defined (JOB_CONTROL)
+ if (job_control)
+ give_terminal_to (shell_pgrp, 0);
+#endif /* JOB_CONTROL */
-STRING_SAVER *pushed_string_list = (STRING_SAVER *)NULL;
+ old_sigint = (SigHandler *)NULL;
+ if (signal_is_ignored (SIGINT) == 0)
+ {
+ old_sigint = (SigHandler *)set_signal_handler (SIGINT, sigint_sighandler);
+ interrupt_immediately++;
+ }
+ terminate_immediately = 1;
-/*
- * Push the current shell_input_line onto a stack of such lines and make S
- * the current input. Used when expanding aliases. EXPAND is used to set
- * the value of expand_next_token when the string is popped, so that the
- * word after the alias in the original line is handled correctly when the
- * alias expands to multiple words. TOKEN is the token that was expanded
- * into S; it is saved and used to prevent infinite recursive expansion.
- */
-static void
-push_string (s, expand, ap)
- char *s;
- int expand;
- alias_t *ap;
-{
- STRING_SAVER *temp = (STRING_SAVER *) xmalloc (sizeof (STRING_SAVER));
+ current_readline_line = readline (current_readline_prompt ?
+ current_readline_prompt : "");
- temp->expand_alias = expand;
- temp->saved_line = shell_input_line;
- temp->saved_line_size = shell_input_line_size;
- temp->saved_line_index = shell_input_line_index;
- temp->saved_line_terminator = shell_input_line_terminator;
- temp->expander = ap;
- temp->next = pushed_string_list;
- pushed_string_list = temp;
+ terminate_immediately = 0;
+ if (signal_is_ignored (SIGINT) == 0 && old_sigint)
+ {
+ interrupt_immediately--;
+ set_signal_handler (SIGINT, old_sigint);
+ }
- ap->flags |= AL_BEINGEXPANDED;
+#if 0
+ /* Reset the prompt to the decoded value of prompt_string_pointer. */
+ reset_readline_prompt ();
+#endif
- shell_input_line = s;
- shell_input_line_size = strlen (s);
- shell_input_line_index = 0;
- shell_input_line_terminator = '\0';
- parser_state &= ~PST_ALEXPNEXT;
-}
+ if (current_readline_line == 0)
+ return (EOF);
-/*
- * Make the top of the pushed_string stack be the current shell input.
- * Only called when there is something on the stack. Called from shell_getc
- * when it thinks it has consumed the string generated by an alias expansion
- * and needs to return to the original input line.
- */
-static void
-pop_string ()
-{
- STRING_SAVER *t;
+ current_readline_line_index = 0;
+ line_len = strlen (current_readline_line);
- FREE (shell_input_line);
- shell_input_line = pushed_string_list->saved_line;
- shell_input_line_index = pushed_string_list->saved_line_index;
- shell_input_line_size = pushed_string_list->saved_line_size;
- shell_input_line_terminator = pushed_string_list->saved_line_terminator;
+ current_readline_line = (char *)xrealloc (current_readline_line, 2 + line_len);
+ current_readline_line[line_len++] = '\n';
+ current_readline_line[line_len] = '\0';
+ }
- if (pushed_string_list->expand_alias)
- parser_state |= PST_ALEXPNEXT;
+ if (current_readline_line[current_readline_line_index] == 0)
+ {
+ free (current_readline_line);
+ current_readline_line = (char *)NULL;
+ return (yy_readline_get ());
+ }
else
- parser_state &= ~PST_ALEXPNEXT;
-
- t = pushed_string_list;
- pushed_string_list = pushed_string_list->next;
+ {
+ c = current_readline_line[current_readline_line_index++];
+ return (c);
+ }
+}
- t->expander->flags &= ~AL_BEINGEXPANDED;
-
- free ((char *)t);
+static int
+yy_readline_unget (c)
+ int c;
+{
+ if (current_readline_line_index && current_readline_line)
+ current_readline_line[--current_readline_line_index] = c;
+ return (c);
}
-static void
-free_string_list ()
+void
+with_input_from_stdin ()
{
- register STRING_SAVER *t, *t1;
+ INPUT_STREAM location;
- for (t = pushed_string_list; t; )
+ if (bash_input.type != st_stdin && stream_on_stack (st_stdin) == 0)
{
- t1 = t->next;
- FREE (t->saved_line);
- t->expander->flags &= ~AL_BEINGEXPANDED;
- free ((char *)t);
- t = t1;
+ location.string = current_readline_line;
+ init_yy_io (yy_readline_get, yy_readline_unget,
+ st_stdin, "readline stdin", location);
}
- pushed_string_list = (STRING_SAVER *)NULL;
}
-#endif /* ALIAS */
+#else /* !READLINE */
-/* Return a line of text, taken from wherever yylex () reads input.
- If there is no more input, then we return NULL. If REMOVE_QUOTED_NEWLINE
- is non-zero, we remove unquoted \<newline> pairs. This is used by
- read_secondary_line to read here documents. */
-static char *
-read_a_line (remove_quoted_newline)
- int remove_quoted_newline;
+void
+with_input_from_stdin ()
{
- static char *line_buffer = (char *)NULL;
- static int buffer_size = 0;
- int indx = 0, c, peekc, pass_next;
+ with_input_from_stream (stdin, "stdin");
+}
+#endif /* !READLINE */
-#if defined (READLINE)
- if (interactive && bash_input.type != st_string && no_line_editing)
-#else
- if (interactive && bash_input.type != st_string)
-#endif
- print_prompt ();
+/* **************************************************************** */
+/* */
+/* Let input come from STRING. STRING is zero terminated. */
+/* */
+/* **************************************************************** */
- pass_next = 0;
- while (1)
+static int
+yy_string_get ()
+{
+ register char *string;
+ register unsigned char c;
+
+ string = bash_input.location.string;
+
+ /* If the string doesn't exist, or is empty, EOF found. */
+ if (string && *string)
{
- c = yy_getc ();
+ c = *string++;
+ bash_input.location.string = string;
+ return (c);
+ }
+ else
+ return (EOF);
+}
- /* Allow immediate exit if interrupted during input. */
- QUIT;
+static int
+yy_string_unget (c)
+ int c;
+{
+ *(--bash_input.location.string) = c;
+ return (c);
+}
- if (c == 0)
- continue;
+void
+with_input_from_string (string, name)
+ char *string;
+ const char *name;
+{
+ INPUT_STREAM location;
- /* If there is no more input, then we return NULL. */
- if (c == EOF)
- {
- if (interactive && bash_input.type == st_stream)
- clearerr (stdin);
- if (indx == 0)
- return ((char *)NULL);
- c = '\n';
- }
+ location.string = string;
+ init_yy_io (yy_string_get, yy_string_unget, st_string, name, location);
+}
- /* `+2' in case the final character in the buffer is a newline. */
- RESIZE_MALLOCED_BUFFER (line_buffer, indx, 2, buffer_size, 128);
+/* Count the number of characters we've consumed from bash_input.location.string
+ and read into shell_input_line, but have not returned from shell_getc.
+ That is the true input location. Rewind bash_input.location.string by
+ that number of characters, so it points to the last character actually
+ consumed by the parser. */
+static void
+rewind_input_string ()
+{
+ int xchars;
+
+ /* number of unconsumed characters in the input -- XXX need to take newlines
+ into account, e.g., $(...\n) */
+ xchars = shell_input_line_len - shell_input_line_index;
+ if (bash_input.location.string[-1] == '\n')
+ xchars++;
+
+ /* XXX - how to reflect bash_input.location.string back to string passed to
+ parse_and_execute or xparse_dolparen? xparse_dolparen needs to know how
+ far into the string we parsed. parse_and_execute knows where bash_input.
+ location.string is, and how far from orig_string that is -- that's the
+ number of characters the command consumed. */
+
+ /* bash_input.location.string - xchars should be where we parsed to */
+ /* need to do more validation on xchars value for sanity -- test cases. */
+ bash_input.location.string -= xchars;
+}
- /* IF REMOVE_QUOTED_NEWLINES is non-zero, we are reading a
- here document with an unquoted delimiter. In this case,
- the line will be expanded as if it were in double quotes.
- We allow a backslash to escape the next character, but we
- need to treat the backslash specially only if a backslash
- quoting a backslash-newline pair appears in the line. */
- if (pass_next)
- {
- line_buffer[indx++] = c;
- pass_next = 0;
- }
- else if (c == '\\' && remove_quoted_newline)
+/* **************************************************************** */
+/* */
+/* Let input come from STREAM. */
+/* */
+/* **************************************************************** */
+
+/* These two functions used to test the value of the HAVE_RESTARTABLE_SYSCALLS
+ define, and just use getc/ungetc if it was defined, but since bash
+ installs its signal handlers without the SA_RESTART flag, some signals
+ (like SIGCHLD, SIGWINCH, etc.) received during a read(2) will not cause
+ the read to be restarted. We need to restart it ourselves. */
+
+static int
+yy_stream_get ()
+{
+ int result;
+
+ result = EOF;
+ if (bash_input.location.file)
+ {
+ if (interactive)
{
- peekc = yy_getc ();
- if (peekc == '\n')
- continue; /* Make the unquoted \<newline> pair disappear. */
- else
- {
- yy_ungetc (peekc);
- pass_next = 1;
- line_buffer[indx++] = c; /* Preserve the backslash. */
- }
+ interrupt_immediately++;
+ terminate_immediately++;
}
- else
- line_buffer[indx++] = c;
-
- if (c == '\n')
+ result = getc_with_restart (bash_input.location.file);
+ if (interactive)
{
- line_buffer[indx] = '\0';
- return (line_buffer);
+ interrupt_immediately--;
+ terminate_immediately--;
}
}
+ return (result);
}
-/* Return a line as in read_a_line (), but insure that the prompt is
- the secondary prompt. This is used to read the lines of a here
- document. REMOVE_QUOTED_NEWLINE is non-zero if we should remove
- newlines quoted with backslashes while reading the line. It is
- non-zero unless the delimiter of the here document was quoted. */
-char *
-read_secondary_line (remove_quoted_newline)
- int remove_quoted_newline;
+static int
+yy_stream_unget (c)
+ int c;
{
- prompt_string_pointer = &ps2_prompt;
- prompt_again ();
- return (read_a_line (remove_quoted_newline));
+ return (ungetc_with_restart (c, bash_input.location.file));
}
-/* **************************************************************** */
-/* */
-/* YYLEX () */
-/* */
-/* **************************************************************** */
+void
+with_input_from_stream (stream, name)
+ FILE *stream;
+ const char *name;
+{
+ INPUT_STREAM location;
-/* Reserved words. These are only recognized as the first word of a
- command. */
-STRING_INT_ALIST word_token_alist[] = {
- { "if", IF },
- { "then", THEN },
- { "else", ELSE },
- { "elif", ELIF },
- { "fi", FI },
- { "case", CASE },
- { "esac", ESAC },
- { "for", FOR },
-#if defined (SELECT_COMMAND)
- { "select", SELECT },
-#endif
- { "while", WHILE },
- { "until", UNTIL },
- { "do", DO },
- { "done", DONE },
- { "in", IN },
- { "function", FUNCTION },
-#if defined (COMMAND_TIMING)
- { "time", TIME },
+ location.file = stream;
+ init_yy_io (yy_stream_get, yy_stream_unget, st_stream, name, location);
+}
+
+typedef struct stream_saver {
+ struct stream_saver *next;
+ BASH_INPUT bash_input;
+ int line;
+#if defined (BUFFERED_INPUT)
+ BUFFERED_STREAM *bstream;
+#endif /* BUFFERED_INPUT */
+} STREAM_SAVER;
+
+/* The globally known line number. */
+int line_number = 0;
+
+#if defined (COND_COMMAND)
+static int cond_lineno;
+static int cond_token;
#endif
- { "{", '{' },
- { "}", '}' },
- { "!", BANG },
- { (char *)NULL, 0}
-};
-/* These are used by read_token_word, but appear up here so that shell_getc
- can use them to decide when to add otherwise blank lines to the history. */
+STREAM_SAVER *stream_list = (STREAM_SAVER *)NULL;
-/* The primary delimiter stack. */
-struct dstack dstack = { (char *)NULL, 0, 0 };
+void
+push_stream (reset_lineno)
+ int reset_lineno;
+{
+ STREAM_SAVER *saver = (STREAM_SAVER *)xmalloc (sizeof (STREAM_SAVER));
-/* A temporary delimiter stack to be used when decoding prompt strings.
- This is needed because command substitutions in prompt strings (e.g., PS2)
- can screw up the parser's quoting state. */
-static struct dstack temp_dstack = { (char *)NULL, 0, 0 };
+ xbcopy ((char *)&bash_input, (char *)&(saver->bash_input), sizeof (BASH_INPUT));
-/* Macro for accessing the top delimiter on the stack. Returns the
- delimiter or zero if none. */
-#define current_delimiter(ds) \
- (ds.delimiter_depth ? ds.delimiters[ds.delimiter_depth - 1] : 0)
+#if defined (BUFFERED_INPUT)
+ saver->bstream = (BUFFERED_STREAM *)NULL;
+ /* If we have a buffered stream, clear out buffers[fd]. */
+ if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0)
+ saver->bstream = set_buffered_stream (bash_input.location.buffered_fd,
+ (BUFFERED_STREAM *)NULL);
+#endif /* BUFFERED_INPUT */
-#define push_delimiter(ds, character) \
- do \
- { \
- if (ds.delimiter_depth + 2 > ds.delimiter_space) \
- ds.delimiters = xrealloc \
- (ds.delimiters, (ds.delimiter_space += 10) * sizeof (char)); \
- ds.delimiters[ds.delimiter_depth] = character; \
- ds.delimiter_depth++; \
- } \
- while (0)
+ saver->line = line_number;
+ bash_input.name = (char *)NULL;
+ saver->next = stream_list;
+ stream_list = saver;
+ EOF_Reached = 0;
+ if (reset_lineno)
+ line_number = 0;
+}
+
+void
+pop_stream ()
+{
+ if (!stream_list)
+ EOF_Reached = 1;
+ else
+ {
+ STREAM_SAVER *saver = stream_list;
+
+ EOF_Reached = 0;
+ stream_list = stream_list->next;
+
+ init_yy_io (saver->bash_input.getter,
+ saver->bash_input.ungetter,
+ saver->bash_input.type,
+ saver->bash_input.name,
+ saver->bash_input.location);
+
+#if defined (BUFFERED_INPUT)
+ /* If we have a buffered stream, restore buffers[fd]. */
+ /* If the input file descriptor was changed while this was on the
+ save stack, update the buffered fd to the new file descriptor and
+ re-establish the buffer <-> bash_input fd correspondence. */
+ if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0)
+ {
+ if (bash_input_fd_changed)
+ {
+ bash_input_fd_changed = 0;
+ if (default_buffered_input >= 0)
+ {
+ bash_input.location.buffered_fd = default_buffered_input;
+ saver->bstream->b_fd = default_buffered_input;
+ SET_CLOSE_ON_EXEC (default_buffered_input);
+ }
+ }
+ /* XXX could free buffered stream returned as result here. */
+ set_buffered_stream (bash_input.location.buffered_fd, saver->bstream);
+ }
+#endif /* BUFFERED_INPUT */
+
+ line_number = saver->line;
+
+ FREE (saver->bash_input.name);
+ free (saver);
+ }
+}
+
+/* Return 1 if a stream of type TYPE is saved on the stack. */
+int
+stream_on_stack (type)
+ enum stream_type type;
+{
+ register STREAM_SAVER *s;
+
+ for (s = stream_list; s; s = s->next)
+ if (s->bash_input.type == type)
+ return 1;
+ return 0;
+}
+
+/* Save the current token state and return it in a malloced array. */
+int *
+save_token_state ()
+{
+ int *ret;
+
+ ret = (int *)xmalloc (3 * sizeof (int));
+ ret[0] = last_read_token;
+ ret[1] = token_before_that;
+ ret[2] = two_tokens_ago;
+ return ret;
+}
+
+void
+restore_token_state (ts)
+ int *ts;
+{
+ if (ts == 0)
+ return;
+ last_read_token = ts[0];
+ token_before_that = ts[1];
+ two_tokens_ago = ts[2];
+}
+
+/*
+ * This is used to inhibit alias expansion and reserved word recognition
+ * inside case statement pattern lists. A `case statement pattern list' is:
+ *
+ * everything between the `in' in a `case word in' and the next ')'
+ * or `esac'
+ * everything between a `;;' and the next `)' or `esac'
+ */
+
+#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
+
+#define END_OF_ALIAS 0
+
+/*
+ * Pseudo-global variables used in implementing token-wise alias expansion.
+ */
+
+/*
+ * Pushing and popping strings. This works together with shell_getc to
+ * implement alias expansion on a per-token basis.
+ */
+
+typedef struct string_saver {
+ struct string_saver *next;
+ int expand_alias; /* Value to set expand_alias to when string is popped. */
+ char *saved_line;
+#if defined (ALIAS)
+ alias_t *expander; /* alias that caused this line to be pushed. */
+#endif
+ int saved_line_size, saved_line_index, saved_line_terminator;
+} STRING_SAVER;
+
+STRING_SAVER *pushed_string_list = (STRING_SAVER *)NULL;
+
+/*
+ * Push the current shell_input_line onto a stack of such lines and make S
+ * the current input. Used when expanding aliases. EXPAND is used to set
+ * the value of expand_next_token when the string is popped, so that the
+ * word after the alias in the original line is handled correctly when the
+ * alias expands to multiple words. TOKEN is the token that was expanded
+ * into S; it is saved and used to prevent infinite recursive expansion.
+ */
+static void
+push_string (s, expand, ap)
+ char *s;
+ int expand;
+ alias_t *ap;
+{
+ STRING_SAVER *temp = (STRING_SAVER *)xmalloc (sizeof (STRING_SAVER));
+
+ temp->expand_alias = expand;
+ temp->saved_line = shell_input_line;
+ temp->saved_line_size = shell_input_line_size;
+ temp->saved_line_index = shell_input_line_index;
+ temp->saved_line_terminator = shell_input_line_terminator;
+#if defined (ALIAS)
+ temp->expander = ap;
+#endif
+ temp->next = pushed_string_list;
+ pushed_string_list = temp;
+
+#if defined (ALIAS)
+ if (ap)
+ ap->flags |= AL_BEINGEXPANDED;
+#endif
+
+ shell_input_line = s;
+ shell_input_line_size = strlen (s);
+ shell_input_line_index = 0;
+ shell_input_line_terminator = '\0';
+#if 0
+ parser_state &= ~PST_ALEXPNEXT; /* XXX */
+#endif
+
+ set_line_mbstate ();
+}
+
+/*
+ * Make the top of the pushed_string stack be the current shell input.
+ * Only called when there is something on the stack. Called from shell_getc
+ * when it thinks it has consumed the string generated by an alias expansion
+ * and needs to return to the original input line.
+ */
+static void
+pop_string ()
+{
+ STRING_SAVER *t;
+
+ FREE (shell_input_line);
+ shell_input_line = pushed_string_list->saved_line;
+ shell_input_line_index = pushed_string_list->saved_line_index;
+ shell_input_line_size = pushed_string_list->saved_line_size;
+ shell_input_line_terminator = pushed_string_list->saved_line_terminator;
+
+ if (pushed_string_list->expand_alias)
+ parser_state |= PST_ALEXPNEXT;
+ else
+ parser_state &= ~PST_ALEXPNEXT;
+
+ t = pushed_string_list;
+ pushed_string_list = pushed_string_list->next;
+
+#if defined (ALIAS)
+ if (t->expander)
+ t->expander->flags &= ~AL_BEINGEXPANDED;
+#endif
+
+ free ((char *)t);
+
+ set_line_mbstate ();
+}
+
+static void
+free_string_list ()
+{
+ register STRING_SAVER *t, *t1;
+
+ for (t = pushed_string_list; t; )
+ {
+ t1 = t->next;
+ FREE (t->saved_line);
+#if defined (ALIAS)
+ if (t->expander)
+ t->expander->flags &= ~AL_BEINGEXPANDED;
+#endif
+ free ((char *)t);
+ t = t1;
+ }
+ pushed_string_list = (STRING_SAVER *)NULL;
+}
+
+#endif /* ALIAS || DPAREN_ARITHMETIC */
+
+void
+free_pushed_string_input ()
+{
+#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
+ free_string_list ();
+#endif
+}
+
+/* Return a line of text, taken from wherever yylex () reads input.
+ If there is no more input, then we return NULL. If REMOVE_QUOTED_NEWLINE
+ is non-zero, we remove unquoted \<newline> pairs. This is used by
+ read_secondary_line to read here documents. */
+static char *
+read_a_line (remove_quoted_newline)
+ int remove_quoted_newline;
+{
+ static char *line_buffer = (char *)NULL;
+ static int buffer_size = 0;
+ int indx = 0, c, peekc, pass_next;
+
+#if defined (READLINE)
+ if (no_line_editing && SHOULD_PROMPT ())
+#else
+ if (SHOULD_PROMPT ())
+#endif
+ print_prompt ();
+
+ pass_next = 0;
+ while (1)
+ {
+ /* Allow immediate exit if interrupted during input. */
+ QUIT;
+
+ c = yy_getc ();
+
+ /* Ignore null bytes in input. */
+ if (c == 0)
+ {
+#if 0
+ internal_warning ("read_a_line: ignored null byte in input");
+#endif
+ continue;
+ }
+
+ /* If there is no more input, then we return NULL. */
+ if (c == EOF)
+ {
+ if (interactive && bash_input.type == st_stream)
+ clearerr (stdin);
+ if (indx == 0)
+ return ((char *)NULL);
+ c = '\n';
+ }
+
+ /* `+2' in case the final character in the buffer is a newline. */
+ RESIZE_MALLOCED_BUFFER (line_buffer, indx, 2, buffer_size, 128);
+
+ /* IF REMOVE_QUOTED_NEWLINES is non-zero, we are reading a
+ here document with an unquoted delimiter. In this case,
+ the line will be expanded as if it were in double quotes.
+ We allow a backslash to escape the next character, but we
+ need to treat the backslash specially only if a backslash
+ quoting a backslash-newline pair appears in the line. */
+ if (pass_next)
+ {
+ line_buffer[indx++] = c;
+ pass_next = 0;
+ }
+ else if (c == '\\' && remove_quoted_newline)
+ {
+ peekc = yy_getc ();
+ if (peekc == '\n')
+ {
+ line_number++;
+ continue; /* Make the unquoted \<newline> pair disappear. */
+ }
+ else
+ {
+ yy_ungetc (peekc);
+ pass_next = 1;
+ line_buffer[indx++] = c; /* Preserve the backslash. */
+ }
+ }
+ else
+ line_buffer[indx++] = c;
+
+ if (c == '\n')
+ {
+ line_buffer[indx] = '\0';
+ return (line_buffer);
+ }
+ }
+}
+
+/* Return a line as in read_a_line (), but insure that the prompt is
+ the secondary prompt. This is used to read the lines of a here
+ document. REMOVE_QUOTED_NEWLINE is non-zero if we should remove
+ newlines quoted with backslashes while reading the line. It is
+ non-zero unless the delimiter of the here document was quoted. */
+char *
+read_secondary_line (remove_quoted_newline)
+ int remove_quoted_newline;
+{
+ char *ret;
+ int n, c;
+
+ prompt_string_pointer = &ps2_prompt;
+ if (SHOULD_PROMPT())
+ prompt_again ();
+ ret = read_a_line (remove_quoted_newline);
+#if defined (HISTORY)
+ if (remember_on_history && (parser_state & PST_HEREDOC))
+ {
+ /* To make adding the the here-document body right, we need to rely
+ on history_delimiting_chars() returning \n for the first line of
+ the here-document body and the null string for the second and
+ subsequent lines, so we avoid double newlines.
+ current_command_line_count == 2 for the first line of the body. */
+
+ current_command_line_count++;
+ maybe_add_history (ret);
+ }
+#endif /* HISTORY */
+ return ret;
+}
+
+/* **************************************************************** */
+/* */
+/* YYLEX () */
+/* */
+/* **************************************************************** */
+
+/* Reserved words. These are only recognized as the first word of a
+ command. */
+STRING_INT_ALIST word_token_alist[] = {
+ { "if", IF },
+ { "then", THEN },
+ { "else", ELSE },
+ { "elif", ELIF },
+ { "fi", FI },
+ { "case", CASE },
+ { "esac", ESAC },
+ { "for", FOR },
+#if defined (SELECT_COMMAND)
+ { "select", SELECT },
+#endif
+ { "while", WHILE },
+ { "until", UNTIL },
+ { "do", DO },
+ { "done", DONE },
+ { "in", IN },
+ { "function", FUNCTION },
+#if defined (COMMAND_TIMING)
+ { "time", TIME },
+#endif
+ { "{", '{' },
+ { "}", '}' },
+ { "!", BANG },
+#if defined (COND_COMMAND)
+ { "[[", COND_START },
+ { "]]", COND_END },
+#endif
+#if defined (COPROCESS_SUPPORT)
+ { "coproc", COPROC },
+#endif
+ { (char *)NULL, 0}
+};
+
+/* other tokens that can be returned by read_token() */
+STRING_INT_ALIST other_token_alist[] = {
+ /* Multiple-character tokens with special values */
+ { "-p", TIMEOPT },
+ { "&&", AND_AND },
+ { "||", OR_OR },
+ { ">>", GREATER_GREATER },
+ { "<<", LESS_LESS },
+ { "<&", LESS_AND },
+ { ">&", GREATER_AND },
+ { ";;", SEMI_SEMI },
+ { ";&", SEMI_AND },
+ { ";;&", SEMI_SEMI_AND },
+ { "<<-", LESS_LESS_MINUS },
+ { "<<<", LESS_LESS_LESS },
+ { "&>", AND_GREATER },
+ { "&>>", AND_GREATER_GREATER },
+ { "<>", LESS_GREATER },
+ { ">|", GREATER_BAR },
+ { "|&", BAR_AND },
+ { "EOF", yacc_EOF },
+ /* Tokens whose value is the character itself */
+ { ">", '>' },
+ { "<", '<' },
+ { "-", '-' },
+ { "{", '{' },
+ { "}", '}' },
+ { ";", ';' },
+ { "(", '(' },
+ { ")", ')' },
+ { "|", '|' },
+ { "&", '&' },
+ { "newline", '\n' },
+ { (char *)NULL, 0}
+};
+
+/* others not listed here:
+ WORD look at yylval.word
+ ASSIGNMENT_WORD look at yylval.word
+ NUMBER look at yylval.number
+ ARITH_CMD look at yylval.word_list
+ ARITH_FOR_EXPRS look at yylval.word_list
+ COND_CMD look at yylval.command
+*/
+
+/* These are used by read_token_word, but appear up here so that shell_getc
+ can use them to decide when to add otherwise blank lines to the history. */
+
+/* The primary delimiter stack. */
+struct dstack dstack = { (char *)NULL, 0, 0 };
+
+/* A temporary delimiter stack to be used when decoding prompt strings.
+ This is needed because command substitutions in prompt strings (e.g., PS2)
+ can screw up the parser's quoting state. */
+static struct dstack temp_dstack = { (char *)NULL, 0, 0 };
+
+/* Macro for accessing the top delimiter on the stack. Returns the
+ delimiter or zero if none. */
+#define current_delimiter(ds) \
+ (ds.delimiter_depth ? ds.delimiters[ds.delimiter_depth - 1] : 0)
+
+#define push_delimiter(ds, character) \
+ do \
+ { \
+ if (ds.delimiter_depth + 2 > ds.delimiter_space) \
+ ds.delimiters = (char *)xrealloc \
+ (ds.delimiters, (ds.delimiter_space += 10) * sizeof (char)); \
+ ds.delimiters[ds.delimiter_depth] = character; \
+ ds.delimiter_depth++; \
+ } \
+ while (0)
+
+#define pop_delimiter(ds) ds.delimiter_depth--
+
+/* Return the next shell input character. This always reads characters
+ from shell_input_line; when that line is exhausted, it is time to
+ read the next line. This is called by read_token when the shell is
+ processing normal command input. */
+
+/* This implements one-character lookahead/lookbehind across physical input
+ lines, to avoid something being lost because it's pushed back with
+ shell_ungetc when we're at the start of a line. */
+static int eol_ungetc_lookahead = 0;
+
+static int
+shell_getc (remove_quoted_newline)
+ int remove_quoted_newline;
+{
+ register int i;
+ int c;
+ unsigned char uc;
+
+ QUIT;
+
+ if (sigwinch_received)
+ {
+ sigwinch_received = 0;
+ get_new_window_size (0, (int *)0, (int *)0);
+ }
+
+ if (eol_ungetc_lookahead)
+ {
+ c = eol_ungetc_lookahead;
+ eol_ungetc_lookahead = 0;
+ return (c);
+ }
+
+#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
+ /* If shell_input_line[shell_input_line_index] == 0, but there is
+ something on the pushed list of strings, then we don't want to go
+ off and get another line. We let the code down below handle it. */
+
+ if (!shell_input_line || ((!shell_input_line[shell_input_line_index]) &&
+ (pushed_string_list == (STRING_SAVER *)NULL)))
+#else /* !ALIAS && !DPAREN_ARITHMETIC */
+ if (!shell_input_line || !shell_input_line[shell_input_line_index])
+#endif /* !ALIAS && !DPAREN_ARITHMETIC */
+ {
+ line_number++;
+
+ restart_read:
+
+ /* Allow immediate exit if interrupted during input. */
+ QUIT;
+
+ i = 0;
+ shell_input_line_terminator = 0;
+
+ /* If the shell is interatctive, but not currently printing a prompt
+ (interactive_shell && interactive == 0), we don't want to print
+ notifies or cleanup the jobs -- we want to defer it until we do
+ print the next prompt. */
+ if (interactive_shell == 0 || SHOULD_PROMPT())
+ {
+#if defined (JOB_CONTROL)
+ /* This can cause a problem when reading a command as the result
+ of a trap, when the trap is called from flush_child. This call
+ had better not cause jobs to disappear from the job table in
+ that case, or we will have big trouble. */
+ notify_and_cleanup ();
+#else /* !JOB_CONTROL */
+ cleanup_dead_jobs ();
+#endif /* !JOB_CONTROL */
+ }
+
+#if defined (READLINE)
+ if (no_line_editing && SHOULD_PROMPT())
+#else
+ if (SHOULD_PROMPT())
+#endif
+ print_prompt ();
+
+ if (bash_input.type == st_stream)
+ clearerr (stdin);
+
+ while (1)
+ {
+ c = yy_getc ();
+
+ /* Allow immediate exit if interrupted during input. */
+ QUIT;
+
+ if (c == '\0')
+ {
+#if 0
+ internal_warning ("shell_getc: ignored null byte in input");
+#endif
+ continue;
+ }
+
+ RESIZE_MALLOCED_BUFFER (shell_input_line, i, 2, shell_input_line_size, 256);
+
+ if (c == EOF)
+ {
+ if (bash_input.type == st_stream)
+ clearerr (stdin);
+
+ if (i == 0)
+ shell_input_line_terminator = EOF;
+
+ shell_input_line[i] = '\0';
+ break;
+ }
+
+ shell_input_line[i++] = c;
+
+ if (c == '\n')
+ {
+ shell_input_line[--i] = '\0';
+ current_command_line_count++;
+ break;
+ }
+ }
+
+ shell_input_line_index = 0;
+ shell_input_line_len = i; /* == strlen (shell_input_line) */
+
+ set_line_mbstate ();
+
+#if defined (HISTORY)
+ if (remember_on_history && shell_input_line && shell_input_line[0])
+ {
+ char *expansions;
+# if defined (BANG_HISTORY)
+ int old_hist;
+
+ /* If the current delimiter is a single quote, we should not be
+ performing history expansion, even if we're on a different
+ line from the original single quote. */
+ old_hist = history_expansion_inhibited;
+ if (current_delimiter (dstack) == '\'')
+ history_expansion_inhibited = 1;
+# endif
+ expansions = pre_process_line (shell_input_line, 1, 1);
+# if defined (BANG_HISTORY)
+ history_expansion_inhibited = old_hist;
+# endif
+ if (expansions != shell_input_line)
+ {
+ free (shell_input_line);
+ shell_input_line = expansions;
+ shell_input_line_len = shell_input_line ?
+ strlen (shell_input_line) : 0;
+ if (!shell_input_line_len)
+ current_command_line_count--;
+
+ /* We have to force the xrealloc below because we don't know
+ the true allocated size of shell_input_line anymore. */
+ shell_input_line_size = shell_input_line_len;
+
+ set_line_mbstate ();
+ }
+ }
+ /* Try to do something intelligent with blank lines encountered while
+ entering multi-line commands. XXX - this is grotesque */
+ else if (remember_on_history && shell_input_line &&
+ shell_input_line[0] == '\0' &&
+ current_command_line_count > 1)
+ {
+ if (current_delimiter (dstack))
+ /* We know shell_input_line[0] == 0 and we're reading some sort of
+ quoted string. This means we've got a line consisting of only
+ a newline in a quoted string. We want to make sure this line
+ gets added to the history. */
+ maybe_add_history (shell_input_line);
+ else
+ {
+ char *hdcs;
+ hdcs = history_delimiting_chars ();
+ if (hdcs && hdcs[0] == ';')
+ maybe_add_history (shell_input_line);
+ }
+ }
+
+#endif /* HISTORY */
+
+ if (shell_input_line)
+ {
+ /* Lines that signify the end of the shell's input should not be
+ echoed. */
+ if (echo_input_at_read && (shell_input_line[0] ||
+ shell_input_line_terminator != EOF))
+ fprintf (stderr, "%s\n", shell_input_line);
+ }
+ else
+ {
+ shell_input_line_size = 0;
+ prompt_string_pointer = ¤t_prompt_string;
+ if (SHOULD_PROMPT ())
+ prompt_again ();
+ goto restart_read;
+ }
+
+ /* Add the newline to the end of this string, iff the string does
+ not already end in an EOF character. */
+ if (shell_input_line_terminator != EOF)
+ {
+ if (shell_input_line_len + 3 > shell_input_line_size)
+ shell_input_line = (char *)xrealloc (shell_input_line,
+ 1 + (shell_input_line_size += 2));
+
+ shell_input_line[shell_input_line_len] = '\n';
+ shell_input_line[shell_input_line_len + 1] = '\0';
+
+ set_line_mbstate ();
+ }
+ }
+
+ uc = shell_input_line[shell_input_line_index];
+
+ if (uc)
+ shell_input_line_index++;
+
+#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
+ /* If UC is NULL, we have reached the end of the current input string. If
+ pushed_string_list is non-empty, it's time to pop to the previous string
+ because we have fully consumed the result of the last alias expansion.
+ Do it transparently; just return the next character of the string popped
+ to. */
+ if (!uc && (pushed_string_list != (STRING_SAVER *)NULL))
+ {
+ pop_string ();
+ uc = shell_input_line[shell_input_line_index];
+ if (uc)
+ shell_input_line_index++;
+ }
+#endif /* ALIAS || DPAREN_ARITHMETIC */
+
+ if MBTEST(uc == '\\' && remove_quoted_newline && shell_input_line[shell_input_line_index] == '\n')
+ {
+ if (SHOULD_PROMPT ())
+ prompt_again ();
+ line_number++;
+ goto restart_read;
+ }
+
+ if (!uc && shell_input_line_terminator == EOF)
+ return ((shell_input_line_index != 0) ? '\n' : EOF);
+
+ return (uc);
+}
+
+/* Put C back into the input for the shell. This might need changes for
+ HANDLE_MULTIBYTE around EOLs. Since we (currently) never push back a
+ character different than we read, shell_input_line_property doesn't need
+ to change when manipulating shell_input_line. The define for
+ last_shell_getc_is_singlebyte should take care of it, though. */
+static void
+shell_ungetc (c)
+ int c;
+{
+ if (shell_input_line && shell_input_line_index)
+ shell_input_line[--shell_input_line_index] = c;
+ else
+ eol_ungetc_lookahead = c;
+}
+
+#ifdef INCLUDE_UNUSED
+/* Back the input pointer up by one, effectively `ungetting' a character. */
+static void
+shell_ungetchar ()
+{
+ if (shell_input_line && shell_input_line_index)
+ shell_input_line_index--;
+}
+#endif
+
+/* Discard input until CHARACTER is seen, then push that character back
+ onto the input stream. */
+static void
+discard_until (character)
+ int character;
+{
+ int c;
+
+ while ((c = shell_getc (0)) != EOF && c != character)
+ ;
+
+ if (c != EOF)
+ shell_ungetc (c);
+}
+
+void
+execute_variable_command (command, vname)
+ char *command, *vname;
+{
+ char *last_lastarg;
+ sh_parser_state_t ps;
+
+ save_parser_state (&ps);
+ last_lastarg = get_string_value ("_");
+ if (last_lastarg)
+ last_lastarg = savestring (last_lastarg);
+
+ parse_and_execute (savestring (command), vname, SEVAL_NONINT|SEVAL_NOHIST);
+
+ restore_parser_state (&ps);
+ bind_variable ("_", last_lastarg, 0);
+ FREE (last_lastarg);
+
+ if (token_to_read == '\n') /* reset_parser was called */
+ token_to_read = 0;
+}
+
+/* Place to remember the token. We try to keep the buffer
+ at a reasonable size, but it can grow. */
+static char *token = (char *)NULL;
+
+/* Current size of the token buffer. */
+static int token_buffer_size;
+
+/* Command to read_token () explaining what we want it to do. */
+#define READ 0
+#define RESET 1
+#define prompt_is_ps1 \
+ (!prompt_string_pointer || prompt_string_pointer == &ps1_prompt)
+
+/* Function for yyparse to call. yylex keeps track of
+ the last two tokens read, and calls read_token. */
+static int
+yylex ()
+{
+ if (interactive && (current_token == 0 || current_token == '\n'))
+ {
+ /* Before we print a prompt, we might have to check mailboxes.
+ We do this only if it is time to do so. Notice that only here
+ is the mail alarm reset; nothing takes place in check_mail ()
+ except the checking of mail. Please don't change this. */
+ if (prompt_is_ps1 && time_to_check_mail ())
+ {
+ check_mail ();
+ reset_mail_timer ();
+ }
+
+ /* Avoid printing a prompt if we're not going to read anything, e.g.
+ after resetting the parser with read_token (RESET). */
+ if (token_to_read == 0 && SHOULD_PROMPT ())
+ prompt_again ();
+ }
+
+ two_tokens_ago = token_before_that;
+ token_before_that = last_read_token;
+ last_read_token = current_token;
+ current_token = read_token (READ);
+
+ if ((parser_state & PST_EOFTOKEN) && current_token == shell_eof_token)
+ {
+ current_token = yacc_EOF;
+ if (bash_input.type == st_string)
+ rewind_input_string ();
+ }
+ parser_state &= ~PST_EOFTOKEN;
+
+ return (current_token);
+}
+
+/* When non-zero, we have read the required tokens
+ which allow ESAC to be the next one read. */
+static int esacs_needed_count;
+
+void
+gather_here_documents ()
+{
+ int r;
+
+ r = 0;
+ while (need_here_doc)
+ {
+ parser_state |= PST_HEREDOC;
+ make_here_document (redir_stack[r++], line_number);
+ parser_state &= ~PST_HEREDOC;
+ need_here_doc--;
+ }
+}
+
+/* When non-zero, an open-brace used to create a group is awaiting a close
+ brace partner. */
+static int open_brace_count;
+
+#define command_token_position(token) \
+ (((token) == ASSIGNMENT_WORD) || \
+ ((token) != SEMI_SEMI && (token) != SEMI_AND && (token) != SEMI_SEMI_AND && reserved_word_acceptable(token)))
+
+#define assignment_acceptable(token) \
+ (command_token_position(token) && ((parser_state & PST_CASEPAT) == 0))
+
+/* Check to see if TOKEN is a reserved word and return the token
+ value if it is. */
+#define CHECK_FOR_RESERVED_WORD(tok) \
+ do { \
+ if (!dollar_present && !quoted && \
+ reserved_word_acceptable (last_read_token)) \
+ { \
+ int i; \
+ for (i = 0; word_token_alist[i].word != (char *)NULL; i++) \
+ if (STREQ (tok, word_token_alist[i].word)) \
+ { \
+ if ((parser_state & PST_CASEPAT) && (word_token_alist[i].token != ESAC)) \
+ break; \
+ if (word_token_alist[i].token == TIME && time_command_acceptable () == 0) \
+ break; \
+ if (word_token_alist[i].token == ESAC) \
+ parser_state &= ~(PST_CASEPAT|PST_CASESTMT); \
+ else if (word_token_alist[i].token == CASE) \
+ parser_state |= PST_CASESTMT; \
+ else if (word_token_alist[i].token == COND_END) \
+ parser_state &= ~(PST_CONDCMD|PST_CONDEXPR); \
+ else if (word_token_alist[i].token == COND_START) \
+ parser_state |= PST_CONDCMD; \
+ else if (word_token_alist[i].token == '{') \
+ open_brace_count++; \
+ else if (word_token_alist[i].token == '}' && open_brace_count) \
+ open_brace_count--; \
+ return (word_token_alist[i].token); \
+ } \
+ } \
+ } while (0)
+
+#if defined (ALIAS)
+
+ /* OK, we have a token. Let's try to alias expand it, if (and only if)
+ it's eligible.
+
+ It is eligible for expansion if EXPAND_ALIASES is set, and
+ the token is unquoted and the last token read was a command
+ separator (or expand_next_token is set), and we are currently
+ processing an alias (pushed_string_list is non-empty) and this
+ token is not the same as the current or any previously
+ processed alias.
+
+ Special cases that disqualify:
+ In a pattern list in a case statement (parser_state & PST_CASEPAT). */
+
+static char *
+mk_alexpansion (s)
+ char *s;
+{
+ int l;
+ char *r;
+
+ l = strlen (s);
+ r = xmalloc (l + 2);
+ strcpy (r, s);
+ if (r[l -1] != ' ')
+ r[l++] = ' ';
+ r[l] = '\0';
+ return r;
+}
+
+static int
+alias_expand_token (tokstr)
+ char *tokstr;
+{
+ char *expanded;
+ alias_t *ap;
+
+ if (((parser_state & PST_ALEXPNEXT) || command_token_position (last_read_token)) &&
+ (parser_state & PST_CASEPAT) == 0)
+ {
+ ap = find_alias (tokstr);
+
+ /* Currently expanding this token. */
+ if (ap && (ap->flags & AL_BEINGEXPANDED))
+ return (NO_EXPANSION);
+
+ /* mk_alexpansion puts an extra space on the end of the alias expansion,
+ so the lookahead by the parser works right. If this gets changed,
+ make sure the code in shell_getc that deals with reaching the end of
+ an expanded alias is changed with it. */
+ expanded = ap ? mk_alexpansion (ap->value) : (char *)NULL;
+
+ if (expanded)
+ {
+ push_string (expanded, ap->flags & AL_EXPANDNEXT, ap);
+ return (RE_READ_TOKEN);
+ }
+ else
+ /* This is an eligible token that does not have an expansion. */
+ return (NO_EXPANSION);
+ }
+ return (NO_EXPANSION);
+}
+#endif /* ALIAS */
+
+static int
+time_command_acceptable ()
+{
+#if defined (COMMAND_TIMING)
+ switch (last_read_token)
+ {
+ case 0:
+ case ';':
+ case '\n':
+ case AND_AND:
+ case OR_OR:
+ case '&':
+ case DO:
+ case THEN:
+ case ELSE:
+ case '{': /* } */
+ case '(': /* ) */
+ return 1;
+ default:
+ return 0;
+ }
+#else
+ return 0;
+#endif /* COMMAND_TIMING */
+}
+
+/* Handle special cases of token recognition:
+ IN is recognized if the last token was WORD and the token
+ before that was FOR or CASE or SELECT.
+
+ DO is recognized if the last token was WORD and the token
+ before that was FOR or SELECT.
+
+ ESAC is recognized if the last token caused `esacs_needed_count'
+ to be set
+
+ `{' is recognized if the last token as WORD and the token
+ before that was FUNCTION, or if we just parsed an arithmetic
+ `for' command.
+
+ `}' is recognized if there is an unclosed `{' present.
+
+ `-p' is returned as TIMEOPT if the last read token was TIME.
+
+ ']]' is returned as COND_END if the parser is currently parsing
+ a conditional expression ((parser_state & PST_CONDEXPR) != 0)
+
+ `time' is returned as TIME if and only if it is immediately
+ preceded by one of `;', `\n', `||', `&&', or `&'.
+*/
+
+static int
+special_case_tokens (tokstr)
+ char *tokstr;
+{
+ if ((last_read_token == WORD) &&
+#if defined (SELECT_COMMAND)
+ ((token_before_that == FOR) || (token_before_that == CASE) || (token_before_that == SELECT)) &&
+#else
+ ((token_before_that == FOR) || (token_before_that == CASE)) &&
+#endif
+ (tokstr[0] == 'i' && tokstr[1] == 'n' && tokstr[2] == 0))
+ {
+ if (token_before_that == CASE)
+ {
+ parser_state |= PST_CASEPAT;
+ esacs_needed_count++;
+ }
+ return (IN);
+ }
+
+ if (last_read_token == WORD &&
+#if defined (SELECT_COMMAND)
+ (token_before_that == FOR || token_before_that == SELECT) &&
+#else
+ (token_before_that == FOR) &&
+#endif
+ (tokstr[0] == 'd' && tokstr[1] == 'o' && tokstr[2] == '\0'))
+ return (DO);
+
+ /* Ditto for ESAC in the CASE case.
+ Specifically, this handles "case word in esac", which is a legal
+ construct, certainly because someone will pass an empty arg to the
+ case construct, and we don't want it to barf. Of course, we should
+ insist that the case construct has at least one pattern in it, but
+ the designers disagree. */
+ if (esacs_needed_count)
+ {
+ esacs_needed_count--;
+ if (STREQ (tokstr, "esac"))
+ {
+ parser_state &= ~PST_CASEPAT;
+ return (ESAC);
+ }
+ }
+
+ /* The start of a shell function definition. */
+ if (parser_state & PST_ALLOWOPNBRC)
+ {
+ parser_state &= ~PST_ALLOWOPNBRC;
+ if (tokstr[0] == '{' && tokstr[1] == '\0') /* } */
+ {
+ open_brace_count++;
+ function_bstart = line_number;
+ return ('{'); /* } */
+ }
+ }
+
+ /* We allow a `do' after a for ((...)) without an intervening
+ list_terminator */
+ if (last_read_token == ARITH_FOR_EXPRS && tokstr[0] == 'd' && tokstr[1] == 'o' && !tokstr[2])
+ return (DO);
+ if (last_read_token == ARITH_FOR_EXPRS && tokstr[0] == '{' && tokstr[1] == '\0') /* } */
+ {
+ open_brace_count++;
+ return ('{'); /* } */
+ }
+
+ if (open_brace_count && reserved_word_acceptable (last_read_token) && tokstr[0] == '}' && !tokstr[1])
+ {
+ open_brace_count--; /* { */
+ return ('}');
+ }
+
+#if defined (COMMAND_TIMING)
+ /* Handle -p after `time'. */
+ if (last_read_token == TIME && tokstr[0] == '-' && tokstr[1] == 'p' && !tokstr[2])
+ return (TIMEOPT);
+#endif
+
+#if 0
+#if defined (COMMAND_TIMING)
+ if (STREQ (token, "time") && ((parser_state & PST_CASEPAT) == 0) && time_command_acceptable ())
+ return (TIME);
+#endif /* COMMAND_TIMING */
+#endif
+
+#if defined (COND_COMMAND) /* [[ */
+ if ((parser_state & PST_CONDEXPR) && tokstr[0] == ']' && tokstr[1] == ']' && tokstr[2] == '\0')
+ return (COND_END);
+#endif
+
+ return (-1);
+}
+
+/* Called from shell.c when Control-C is typed at top level. Or
+ by the error rule at top level. */
+void
+reset_parser ()
+{
+ dstack.delimiter_depth = 0; /* No delimiters found so far. */
+ open_brace_count = 0;
+
+ parser_state = 0;
+
+#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
+ if (pushed_string_list)
+ free_string_list ();
+#endif /* ALIAS || DPAREN_ARITHMETIC */
+
+ if (shell_input_line)
+ {
+ free (shell_input_line);
+ shell_input_line = (char *)NULL;
+ shell_input_line_size = shell_input_line_index = 0;
+ }
+
+ FREE (word_desc_to_read);
+ word_desc_to_read = (WORD_DESC *)NULL;
+
+ last_read_token = '\n';
+ token_to_read = '\n';
+}
+
+/* Read the next token. Command can be READ (normal operation) or
+ RESET (to normalize state). */
+static int
+read_token (command)
+ int command;
+{
+ int character; /* Current character. */
+ int peek_char; /* Temporary look-ahead character. */
+ int result; /* The thing to return. */
+
+ if (command == RESET)
+ {
+ reset_parser ();
+ return ('\n');
+ }
+
+ if (token_to_read)
+ {
+ result = token_to_read;
+ if (token_to_read == WORD || token_to_read == ASSIGNMENT_WORD)
+ {
+ yylval.word = word_desc_to_read;
+ word_desc_to_read = (WORD_DESC *)NULL;
+ }
+ token_to_read = 0;
+ return (result);
+ }
+
+#if defined (COND_COMMAND)
+ if ((parser_state & (PST_CONDCMD|PST_CONDEXPR)) == PST_CONDCMD)
+ {
+ cond_lineno = line_number;
+ parser_state |= PST_CONDEXPR;
+ yylval.command = parse_cond_command ();
+ if (cond_token != COND_END)
+ {
+ cond_error ();
+ return (-1);
+ }
+ token_to_read = COND_END;
+ parser_state &= ~(PST_CONDEXPR|PST_CONDCMD);
+ return (COND_CMD);
+ }
+#endif
+
+#if defined (ALIAS)
+ /* This is a place to jump back to once we have successfully expanded a
+ token with an alias and pushed the string with push_string () */
+ re_read_token:
+#endif /* ALIAS */
+
+ /* Read a single word from input. Start by skipping blanks. */
+ while ((character = shell_getc (1)) != EOF && shellblank (character))
+ ;
+
+ if (character == EOF)
+ {
+ EOF_Reached = 1;
+ return (yacc_EOF);
+ }
+
+ if MBTEST(character == '#' && (!interactive || interactive_comments))
+ {
+ /* A comment. Discard until EOL or EOF, and then return a newline. */
+ discard_until ('\n');
+ shell_getc (0);
+ character = '\n'; /* this will take the next if statement and return. */
+ }
+
+ if (character == '\n')
+ {
+ /* If we're about to return an unquoted newline, we can go and collect
+ the text of any pending here document. */
+ if (need_here_doc)
+ gather_here_documents ();
+
+#if defined (ALIAS)
+ parser_state &= ~PST_ALEXPNEXT;
+#endif /* ALIAS */
+
+ parser_state &= ~PST_ASSIGNOK;
+
+ return (character);
+ }
+
+ if (parser_state & PST_REGEXP)
+ goto tokword;
+
+ /* Shell meta-characters. */
+ if MBTEST(shellmeta (character) && ((parser_state & PST_DBLPAREN) == 0))
+ {
+#if defined (ALIAS)
+ /* Turn off alias tokenization iff this character sequence would
+ not leave us ready to read a command. */
+ if (character == '<' || character == '>')
+ parser_state &= ~PST_ALEXPNEXT;
+#endif /* ALIAS */
+
+ parser_state &= ~PST_ASSIGNOK;
+
+ peek_char = shell_getc (1);
+ if (character == peek_char)
+ {
+ switch (character)
+ {
+ case '<':
+ /* If '<' then we could be at "<<" or at "<<-". We have to
+ look ahead one more character. */
+ peek_char = shell_getc (1);
+ if MBTEST(peek_char == '-')
+ return (LESS_LESS_MINUS);
+ else if MBTEST(peek_char == '<')
+ return (LESS_LESS_LESS);
+ else
+ {
+ shell_ungetc (peek_char);
+ return (LESS_LESS);
+ }
+
+ case '>':
+ return (GREATER_GREATER);
+
+ case ';':
+ parser_state |= PST_CASEPAT;
+#if defined (ALIAS)
+ parser_state &= ~PST_ALEXPNEXT;
+#endif /* ALIAS */
+
+ peek_char = shell_getc (1);
+ if MBTEST(peek_char == '&')
+ return (SEMI_SEMI_AND);
+ else
+ {
+ shell_ungetc (peek_char);
+ return (SEMI_SEMI);
+ }
+
+ case '&':
+ return (AND_AND);
+
+ case '|':
+ return (OR_OR);
+
+#if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND)
+ case '(': /* ) */
+ result = parse_dparen (character);
+ if (result == -2)
+ break;
+ else
+ return result;
+#endif
+ }
+ }
+ else if MBTEST(character == '<' && peek_char == '&')
+ return (LESS_AND);
+ else if MBTEST(character == '>' && peek_char == '&')
+ return (GREATER_AND);
+ else if MBTEST(character == '<' && peek_char == '>')
+ return (LESS_GREATER);
+ else if MBTEST(character == '>' && peek_char == '|')
+ return (GREATER_BAR);
+ else if MBTEST(character == '&' && peek_char == '>')
+ {
+ peek_char = shell_getc (1);
+ if MBTEST(peek_char == '>')
+ return (AND_GREATER_GREATER);
+ else
+ {
+ shell_ungetc (peek_char);
+ return (AND_GREATER);
+ }
+ }
+ else if MBTEST(character == '|' && peek_char == '&')
+ return (BAR_AND);
+ else if MBTEST(character == ';' && peek_char == '&')
+ {
+ parser_state |= PST_CASEPAT;
+#if defined (ALIAS)
+ parser_state &= ~PST_ALEXPNEXT;
+#endif /* ALIAS */
+ return (SEMI_AND);
+ }
+
+ shell_ungetc (peek_char);
-#define pop_delimiter(ds) ds.delimiter_depth--
+ /* If we look like we are reading the start of a function
+ definition, then let the reader know about it so that
+ we will do the right thing with `{'. */
+ if MBTEST(character == ')' && last_read_token == '(' && token_before_that == WORD)
+ {
+ parser_state |= PST_ALLOWOPNBRC;
+#if defined (ALIAS)
+ parser_state &= ~PST_ALEXPNEXT;
+#endif /* ALIAS */
+ function_dstart = line_number;
+ }
-/* Return the next shell input character. This always reads characters
- from shell_input_line; when that line is exhausted, it is time to
- read the next line. This is called by read_token when the shell is
- processing normal command input. */
+ /* case pattern lists may be preceded by an optional left paren. If
+ we're not trying to parse a case pattern list, the left paren
+ indicates a subshell. */
+ if MBTEST(character == '(' && (parser_state & PST_CASEPAT) == 0) /* ) */
+ parser_state |= PST_SUBSHELL;
+ /*(*/
+ else if MBTEST((parser_state & PST_CASEPAT) && character == ')')
+ parser_state &= ~PST_CASEPAT;
+ /*(*/
+ else if MBTEST((parser_state & PST_SUBSHELL) && character == ')')
+ parser_state &= ~PST_SUBSHELL;
-static int
-shell_getc (remove_quoted_newline)
- int remove_quoted_newline;
-{
- register int i;
- int c;
- static int mustpop = 0;
+#if defined (PROCESS_SUBSTITUTION)
+ /* Check for the constructs which introduce process substitution.
+ Shells running in `posix mode' don't do process substitution. */
+ if MBTEST(posixly_correct || ((character != '>' && character != '<') || peek_char != '(')) /*)*/
+#endif /* PROCESS_SUBSTITUTION */
+ return (character);
+ }
- QUIT;
+ /* Hack <&- (close stdin) case. Also <&N- (dup and close). */
+ if MBTEST(character == '-' && (last_read_token == LESS_AND || last_read_token == GREATER_AND))
+ return (character);
+tokword:
+ /* Okay, if we got this far, we have to read a word. Read one,
+ and then check it against the known ones. */
+ result = read_token_word (character);
#if defined (ALIAS)
- /* If shell_input_line[shell_input_line_index] == 0, but there is
- something on the pushed list of strings, then we don't want to go
- off and get another line. We let the code down below handle it. */
+ if (result == RE_READ_TOKEN)
+ goto re_read_token;
+#endif
+ return result;
+}
- if (!shell_input_line || ((!shell_input_line[shell_input_line_index]) &&
- (pushed_string_list == (STRING_SAVER *)NULL)))
-#else /* !ALIAS */
- if (!shell_input_line || !shell_input_line[shell_input_line_index])
-#endif /* !ALIAS */
- {
- line_number++;
+/*
+ * Match a $(...) or other grouping construct. This has to handle embedded
+ * quoted strings ('', ``, "") and nested constructs. It also must handle
+ * reprompting the user, if necessary, after reading a newline, and returning
+ * correct error values if it reads EOF.
+ */
+#define P_FIRSTCLOSE 0x01
+#define P_ALLOWESC 0x02
+#define P_DQUOTE 0x04
+#define P_COMMAND 0x08 /* parsing a command, so look for comments */
+#define P_BACKQUOTE 0x10 /* parsing a backquoted command substitution */
+
+/* Lexical state while parsing a grouping construct or $(...). */
+#define LEX_WASDOL 0x001
+#define LEX_CKCOMMENT 0x002
+#define LEX_INCOMMENT 0x004
+#define LEX_PASSNEXT 0x008
+#define LEX_RESWDOK 0x010
+#define LEX_CKCASE 0x020
+#define LEX_INCASE 0x040
+#define LEX_INHEREDOC 0x080
+#define LEX_HEREDELIM 0x100 /* reading here-doc delimiter */
+#define LEX_STRIPDOC 0x200 /* <<- strip tabs from here doc delim */
+
+#define COMSUB_META(ch) ((ch) == ';' || (ch) == '&' || (ch) == '|')
+
+#define CHECK_NESTRET_ERROR() \
+ do { \
+ if (nestret == &matched_pair_error) \
+ { \
+ free (ret); \
+ return &matched_pair_error; \
+ } \
+ } while (0)
- restart_read:
+#define APPEND_NESTRET() \
+ do { \
+ if (nestlen) \
+ { \
+ RESIZE_MALLOCED_BUFFER (ret, retind, nestlen, retsize, 64); \
+ strcpy (ret + retind, nestret); \
+ retind += nestlen; \
+ } \
+ } while (0)
- /* Allow immediate exit if interrupted during input. */
- QUIT;
+static char matched_pair_error;
- i = 0;
- shell_input_line_terminator = 0;
+static char *
+parse_matched_pair (qc, open, close, lenp, flags)
+ int qc; /* `"' if this construct is within double quotes */
+ int open, close;
+ int *lenp, flags;
+{
+ int count, ch, tflags;
+ int nestlen, ttranslen, start_lineno;
+ char *ret, *nestret, *ttrans;
+ int retind, retsize, rflags;
-#if defined (JOB_CONTROL)
- /* This can cause a problem when reading a command as the result
- of a trap, when the trap is called from flush_child. This call
- had better not cause jobs to disappear from the job table in
- that case, or we will have big trouble. */
- notify_and_cleanup ();
-#else /* !JOB_CONTROL */
- cleanup_dead_jobs ();
-#endif /* !JOB_CONTROL */
+/* itrace("parse_matched_pair: open = %c close = %c flags = %d", open, close, flags); */
+ count = 1;
+ tflags = 0;
-#if defined (READLINE)
- if (interactive && bash_input.type != st_string && no_line_editing)
-#else
- if (interactive && bash_input.type != st_string)
-#endif
- print_prompt ();
+ if ((flags & P_COMMAND) && qc != '`' && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0)
+ tflags |= LEX_CKCOMMENT;
- if (bash_input.type == st_stream)
- clearerr (stdin);
+ /* RFLAGS is the set of flags we want to pass to recursive calls. */
+ rflags = (qc == '"') ? P_DQUOTE : (flags & P_DQUOTE);
- while (c = yy_getc ())
+ ret = (char *)xmalloc (retsize = 64);
+ retind = 0;
+
+ start_lineno = line_number;
+ while (count)
+ {
+ ch = shell_getc (qc != '\'' && (tflags & LEX_PASSNEXT) == 0);
+
+ if (ch == EOF)
{
- /* Allow immediate exit if interrupted during input. */
- QUIT;
+ free (ret);
+ parser_error (start_lineno, _("unexpected EOF while looking for matching `%c'"), close);
+ EOF_Reached = 1; /* XXX */
+ return (&matched_pair_error);
+ }
- RESIZE_MALLOCED_BUFFER (shell_input_line, i, 2, shell_input_line_size, 256);
+ /* Possible reprompting. */
+ if (ch == '\n' && SHOULD_PROMPT ())
+ prompt_again ();
- if (c == EOF)
- {
- if (bash_input.type == st_stream)
- clearerr (stdin);
+ /* Don't bother counting parens or doing anything else if in a comment
+ or part of a case statement */
+ if (tflags & LEX_INCOMMENT)
+ {
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
- if (i == 0)
- shell_input_line_terminator = EOF;
+ if (ch == '\n')
+ tflags &= ~LEX_INCOMMENT;
- shell_input_line[i] = '\0';
- break;
- }
+ continue;
+ }
- shell_input_line[i++] = c;
+ /* Not exactly right yet, should handle shell metacharacters, too. If
+ any changes are made to this test, make analogous changes to subst.c:
+ extract_delimited_string(). */
+ else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || shellblank (ret[retind - 1])))
+ tflags |= LEX_INCOMMENT;
- if (c == '\n')
+ if (tflags & LEX_PASSNEXT) /* last char was backslash */
+ {
+ tflags &= ~LEX_PASSNEXT;
+ if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */
{
- shell_input_line[--i] = '\0';
- current_command_line_count++;
- break;
+ if (retind > 0)
+ retind--; /* swallow previously-added backslash */
+ continue;
}
- }
- shell_input_line_index = 0;
- shell_input_line_len = i; /* == strlen (shell_input_line) */
-#if defined (HISTORY)
- if (remember_on_history && shell_input_line && shell_input_line[0])
+ RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
+ if MBTEST(ch == CTLESC || ch == CTLNUL)
+ ret[retind++] = CTLESC;
+ ret[retind++] = ch;
+ continue;
+ }
+ /* If we're reparsing the input (e.g., from parse_string_to_word_list),
+ we've already prepended CTLESC to single-quoted results of $'...'.
+ We may want to do this for other CTLESC-quoted characters in
+ reparse, too. */
+ else if MBTEST((parser_state & PST_REPARSE) && open == '\'' && (ch == CTLESC || ch == CTLNUL))
{
- char *expansions;
-# if defined (BANG_HISTORY)
- int old_hist;
-
- /* If the current delimiter is a single quote, we should not be
- performing history expansion, even if we're on a different
- line from the original single quote. */
- old_hist = history_expansion_inhibited;
- if (current_delimiter (dstack) == '\'')
- history_expansion_inhibited = 1;
-# endif
- expansions = pre_process_line (shell_input_line, 1, 1);
-# if defined (BANG_HISTORY)
- history_expansion_inhibited = old_hist;
-# endif
-
- free (shell_input_line);
- shell_input_line = expansions;
- shell_input_line_len = shell_input_line ?
- strlen (shell_input_line) :
- 0;
- if (!shell_input_line_len)
- current_command_line_count--;
-
- /* We have to force the xrealloc below because we don't know the
- true allocated size of shell_input_line anymore. */
- shell_input_line_size = shell_input_line_len;
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
+ continue;
}
- /* XXX - this is grotesque */
- else if (remember_on_history && shell_input_line &&
- shell_input_line[0] == '\0' &&
- current_command_line_count > 1 && current_delimiter (dstack))
+ else if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */
{
- /* We know shell_input_line[0] == 0 and we're reading some sort of
- quoted string. This means we've got a line consisting of only
- a newline in a quoted string. We want to make sure this line
- gets added to the history. */
- maybe_add_history (shell_input_line);
+ RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
+ ret[retind++] = CTLESC;
+ ret[retind++] = ch;
+ continue;
}
+ else if MBTEST(ch == close) /* ending delimiter */
+ count--;
+ /* handle nested ${...} specially. */
+ else if MBTEST(open != close && (tflags & LEX_WASDOL) && open == '{' && ch == open) /* } */
+ count++;
+ else if MBTEST(((flags & P_FIRSTCLOSE) == 0) && ch == open) /* nested begin */
+ count++;
-#endif /* HISTORY */
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
- if (shell_input_line)
- {
- /* Lines that signify the end of the shell's input should not be
- echoed. */
- if (echo_input_at_read && (shell_input_line[0] ||
- shell_input_line_terminator != EOF))
- fprintf (stderr, "%s\n", shell_input_line);
- }
- else
- {
- shell_input_line_size = 0;
- prompt_string_pointer = ¤t_prompt_string;
- prompt_again ();
- goto restart_read;
- }
+ /* If we just read the ending character, don't bother continuing. */
+ if (count == 0)
+ break;
- /* Add the newline to the end of this string, iff the string does
- not already end in an EOF character. */
- if (shell_input_line_terminator != EOF)
+ if (open == '\'') /* '' inside grouping construct */
{
- if (shell_input_line_len + 3 > shell_input_line_size)
- shell_input_line = xrealloc (shell_input_line,
- 1 + (shell_input_line_size += 2));
-
- shell_input_line[shell_input_line_len] = '\n';
- shell_input_line[shell_input_line_len + 1] = '\0';
+ if MBTEST((flags & P_ALLOWESC) && ch == '\\')
+ tflags |= LEX_PASSNEXT;
+ continue;
}
- }
- c = shell_input_line[shell_input_line_index];
+ if MBTEST(ch == '\\') /* backslashes */
+ tflags |= LEX_PASSNEXT;
- if (c)
- shell_input_line_index++;
+#if 0
+ /* The big hammer. Single quotes aren't special in double quotes. The
+ problem is that Posix says the single quotes are semi-special:
+ within a double-quoted ${...} construct "an even number of
+ unescaped double-quotes or single-quotes, if any, shall occur." */
+ if MBTEST(open == '{' && (flags & P_DQUOTE) && ch == '\'') /* } */
+ continue;
+#endif
- if (c == '\\' && remove_quoted_newline &&
- shell_input_line[shell_input_line_index] == '\n')
- {
- prompt_again ();
- line_number++;
- goto restart_read;
- }
+ /* Could also check open == '`' if we want to parse grouping constructs
+ inside old-style command substitution. */
+ if (open != close) /* a grouping construct */
+ {
+ if MBTEST(shellquote (ch))
+ {
+ /* '', ``, or "" inside $(...) or other grouping construct. */
+ push_delimiter (dstack, ch);
+ if MBTEST((tflags & LEX_WASDOL) && ch == '\'') /* $'...' inside group */
+ nestret = parse_matched_pair (ch, ch, ch, &nestlen, P_ALLOWESC|rflags);
+ else
+ nestret = parse_matched_pair (ch, ch, ch, &nestlen, rflags);
+ pop_delimiter (dstack);
+ CHECK_NESTRET_ERROR ();
-#if defined (ALIAS)
- /* If C is NULL, we have reached the end of the current input string. If
- pushed_string_list is non-empty, it's time to pop to the previous string
- because we have fully consumed the result of the last alias expansion.
- Do it transparently; just return the next character of the string popped
- to. */
- if (!c && (pushed_string_list != (STRING_SAVER *)NULL))
- {
- if (mustpop)
- {
- pop_string ();
- c = shell_input_line[shell_input_line_index];
- if (c)
- shell_input_line_index++;
- mustpop--;
- }
- else
- {
- mustpop++;
- c = ' ';
- }
- }
-#endif /* ALIAS */
+ if MBTEST((tflags & LEX_WASDOL) && ch == '\'' && (extended_quote || (rflags & P_DQUOTE) == 0))
+ {
+ /* Translate $'...' here. */
+ ttrans = ansiexpand (nestret, 0, nestlen - 1, &ttranslen);
+ xfree (nestret);
- if (!c && shell_input_line_terminator == EOF)
- return ((shell_input_line_index != 0) ? '\n' : EOF);
+ if ((rflags & P_DQUOTE) == 0)
+ {
+ nestret = sh_single_quote (ttrans);
+ free (ttrans);
+ nestlen = strlen (nestret);
+ }
+ else
+ {
+ nestret = ttrans;
+ nestlen = ttranslen;
+ }
+ retind -= 2; /* back up before the $' */
+ }
+ else if MBTEST((tflags & LEX_WASDOL) && ch == '"' && (extended_quote || (rflags & P_DQUOTE) == 0))
+ {
+ /* Locale expand $"..." here. */
+ ttrans = localeexpand (nestret, 0, nestlen - 1, start_lineno, &ttranslen);
+ xfree (nestret);
+
+ nestret = sh_mkdoublequoted (ttrans, ttranslen, 0);
+ free (ttrans);
+ nestlen = ttranslen + 2;
+ retind -= 2; /* back up before the $" */
+ }
- return ((unsigned char)c);
-}
+ APPEND_NESTRET ();
+ FREE (nestret);
+ }
+ }
+ /* Parse an old-style command substitution within double quotes as a
+ single word. */
+ /* XXX - sh and ksh93 don't do this - XXX */
+ else if MBTEST(open == '"' && ch == '`')
+ {
+ nestret = parse_matched_pair (0, '`', '`', &nestlen, rflags);
-/* Put C back into the input for the shell. */
-static void
-shell_ungetc (c)
- int c;
-{
- if (shell_input_line && shell_input_line_index)
- shell_input_line[--shell_input_line_index] = c;
-}
+ CHECK_NESTRET_ERROR ();
+ APPEND_NESTRET ();
-static void
-shell_ungetchar ()
-{
- if (shell_input_line && shell_input_line_index)
- shell_input_line_index--;
-}
+ FREE (nestret);
+ }
+ else if MBTEST(open != '`' && (tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */
+ /* check for $(), $[], or ${} inside quoted string. */
+ {
+ if (open == ch) /* undo previous increment */
+ count--;
+ if (ch == '(') /* ) */
+ nestret = parse_comsub (0, '(', ')', &nestlen, (rflags|P_COMMAND) & ~P_DQUOTE);
+ else if (ch == '{') /* } */
+ nestret = parse_matched_pair (0, '{', '}', &nestlen, P_FIRSTCLOSE|rflags);
+ else if (ch == '[') /* ] */
+ nestret = parse_matched_pair (0, '[', ']', &nestlen, rflags);
-/* Discard input until CHARACTER is seen, then push that character back
- onto the input stream. */
-static void
-discard_until (character)
- int character;
-{
- int c;
+ CHECK_NESTRET_ERROR ();
+ APPEND_NESTRET ();
- while ((c = shell_getc (0)) != EOF && c != character)
- ;
+ FREE (nestret);
+ }
+ if MBTEST(ch == '$')
+ tflags |= LEX_WASDOL;
+ else
+ tflags &= ~LEX_WASDOL;
+ }
- if (c != EOF)
- shell_ungetc (c);
+ ret[retind] = '\0';
+ if (lenp)
+ *lenp = retind;
+ return ret;
}
-void
-execute_prompt_command (command)
- char *command;
+/* Parse a $(...) command substitution. This is messier than I'd like, and
+ reproduces a lot more of the token-reading code than I'd like. */
+static char *
+parse_comsub (qc, open, close, lenp, flags)
+ int qc; /* `"' if this construct is within double quotes */
+ int open, close;
+ int *lenp, flags;
{
- Function *temp_last, *temp_this;
- char *last_lastarg;
- int temp_exit_value, temp_eof_encountered;
+ int count, ch, peekc, tflags, lex_rwlen, lex_firstind;
+ int nestlen, ttranslen, start_lineno;
+ char *ret, *nestret, *ttrans, *heredelim;
+ int retind, retsize, rflags, hdlen;
- temp_last = last_shell_builtin;
- temp_this = this_shell_builtin;
- temp_exit_value = last_command_exit_value;
- temp_eof_encountered = eof_encountered;
- last_lastarg = get_string_value ("_");
- if (last_lastarg)
- last_lastarg = savestring (last_lastarg);
+/*itrace("parse_comsub: qc = `%c' open = %c close = %c", qc, open, close);*/
+ count = 1;
+ tflags = LEX_RESWDOK;
- parse_and_execute (savestring (command), "PROMPT_COMMAND", 0);
+ if ((flags & P_COMMAND) && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0)
+ tflags |= LEX_CKCASE;
+ if ((tflags & LEX_CKCASE) && (interactive == 0 || interactive_comments))
+ tflags |= LEX_CKCOMMENT;
- last_shell_builtin = temp_last;
- this_shell_builtin = temp_this;
- last_command_exit_value = temp_exit_value;
- eof_encountered = temp_eof_encountered;
+ /* RFLAGS is the set of flags we want to pass to recursive calls. */
+ rflags = (flags & P_DQUOTE);
- bind_variable ("_", last_lastarg);
- FREE (last_lastarg);
+ ret = (char *)xmalloc (retsize = 64);
+ retind = 0;
- if (token_to_read == '\n') /* reset_parser was called */
- token_to_read = 0;
-}
+ start_lineno = line_number;
+ lex_rwlen = 0;
-/* Place to remember the token. We try to keep the buffer
- at a reasonable size, but it can grow. */
-static char *token = (char *)NULL;
+ heredelim = 0;
+ lex_firstind = -1;
-/* Current size of the token buffer. */
-static int token_buffer_size;
+ while (count)
+ {
+comsub_readchar:
+ ch = shell_getc (qc != '\'' && (tflags & LEX_PASSNEXT) == 0);
-/* Command to read_token () explaining what we want it to do. */
-#define READ 0
-#define RESET 1
-#define prompt_is_ps1 \
- (!prompt_string_pointer || prompt_string_pointer == &ps1_prompt)
+ if (ch == EOF)
+ {
+eof_error:
+ free (ret);
+ FREE (heredelim);
+ parser_error (start_lineno, _("unexpected EOF while looking for matching `%c'"), close);
+ EOF_Reached = 1; /* XXX */
+ return (&matched_pair_error);
+ }
-/* Function for yyparse to call. yylex keeps track of
- the last two tokens read, and calls read_token. */
-static int
-yylex ()
-{
- if (interactive && (current_token == 0 || current_token == '\n'))
- {
- /* Before we print a prompt, we might have to check mailboxes.
- We do this only if it is time to do so. Notice that only here
- is the mail alarm reset; nothing takes place in check_mail ()
- except the checking of mail. Please don't change this. */
- if (prompt_is_ps1 && time_to_check_mail ())
+ /* If we hit the end of a line and are reading the contents of a here
+ document, and it's not the same line that the document starts on,
+ check for this line being the here doc delimiter. Otherwise, if
+ we're in a here document, mark the next character as the beginning
+ of a line. */
+ if (ch == '\n')
{
- check_mail ();
- reset_mail_timer ();
+ if ((tflags & LEX_HEREDELIM) && heredelim)
+ {
+ tflags &= ~LEX_HEREDELIM;
+ tflags |= LEX_INHEREDOC;
+ lex_firstind = retind + 1;
+ }
+ else if (tflags & LEX_INHEREDOC)
+ {
+ int tind;
+ tind = lex_firstind;
+ while ((tflags & LEX_STRIPDOC) && ret[tind] == '\t')
+ tind++;
+ if (STREQN (ret + tind, heredelim, hdlen))
+ {
+ tflags &= ~(LEX_STRIPDOC|LEX_INHEREDOC);
+/*itrace("parse_comsub:%d: found here doc end `%s'", line_number, ret + tind);*/
+ lex_firstind = -1;
+ }
+ else
+ lex_firstind = retind + 1;
+ }
}
- /* Avoid printing a prompt if we're not going to read anything, e.g.
- after resetting the parser with read_token (RESET). */
- if (token_to_read == 0 && interactive)
+ /* Possible reprompting. */
+ if (ch == '\n' && SHOULD_PROMPT ())
prompt_again ();
- }
- two_tokens_ago = token_before_that;
- token_before_that = last_read_token;
- last_read_token = current_token;
- current_token = read_token (READ);
- return (current_token);
-}
+ /* Don't bother counting parens or doing anything else if in a comment */
+ if (tflags & (LEX_INCOMMENT|LEX_INHEREDOC))
+ {
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
-/* When non-zero, we have read the required tokens
- which allow ESAC to be the next one read. */
-static int esacs_needed_count;
+ if ((tflags & LEX_INCOMMENT) && ch == '\n')
+ tflags &= ~LEX_INCOMMENT;
-void
-gather_here_documents ()
+ continue;
+ }
+
+ /* Skip whitespace */
+ if MBTEST(shellblank (ch) && lex_rwlen == 0)
+ {
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
+ continue;
+ }
+
+ /* Either we are looking for the start of the here-doc delimiter
+ (lex_firstind == -1) or we are reading one (lex_firstind >= 0).
+ If this character is a shell break character and we are reading
+ the delimiter, save it and note that we are now reading a here
+ document. If we've found the start of the delimiter, note it by
+ setting lex_firstind. Backslashes can quote shell metacharacters
+ in here-doc delimiters. */
+ if (tflags & LEX_HEREDELIM)
+ {
+ if (lex_firstind == -1 && shellbreak (ch) == 0)
+ lex_firstind = retind;
+ else if (lex_firstind >= 0 && (tflags & LEX_PASSNEXT) == 0 && shellbreak (ch))
+ {
+ nestret = substring (ret, lex_firstind, retind);
+ heredelim = string_quote_removal (nestret, 0);
+ free (nestret);
+ hdlen = STRLEN(heredelim);
+/*itrace("parse_comsub:%d: found here doc delimiter `%s' (%d)", line_number, heredelim, hdlen);*/
+ if (ch == '\n')
+ {
+ tflags |= LEX_INHEREDOC;
+ tflags &= ~LEX_HEREDELIM;
+ lex_firstind = retind + 1;
+ }
+ else
+ lex_firstind = -1;
+ }
+ }
+
+ /* Meta-characters that can introduce a reserved word. Not perfect yet. */
+ if MBTEST((tflags & LEX_RESWDOK) == 0 && (tflags & LEX_CKCASE) && (tflags & LEX_INCOMMENT) == 0 && shellmeta(ch))
+ {
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
+ peekc = shell_getc (1);
+ if (ch == peekc && (ch == '&' || ch == '|' || ch == ';')) /* two-character tokens */
+ {
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = peekc;
+/*itrace("parse_comsub:%d: set lex_reswordok = 1, ch = `%c'", line_number, ch); */
+ tflags |= LEX_RESWDOK;
+ lex_rwlen = 0;
+ continue;
+ }
+ else if (ch == '\n' || COMSUB_META(ch))
+ {
+ shell_ungetc (peekc);
+ tflags |= LEX_RESWDOK;
+/*itrace("parse_comsub:%d: set lex_reswordok = 1, ch = `%c'", line_number, ch);*/
+ lex_rwlen = 0;
+ continue;
+ }
+ else if (ch == EOF)
+ goto eof_error;
+ else
+ {
+ /* `unget' the character we just added and fall through */
+ retind--;
+ shell_ungetc (peekc);
+ }
+ }
+
+ /* If we can read a reserved word, try to read one. */
+ if (tflags & LEX_RESWDOK)
+ {
+ if MBTEST(islower (ch))
+ {
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
+ lex_rwlen++;
+ continue;
+ }
+ else if MBTEST(lex_rwlen == 4 && shellbreak (ch))
+ {
+ if (STREQN (ret + retind - 4, "case", 4))
{
- int r = 0;
- while (need_here_doc)
- {
- make_here_document (redir_stack[r++]);
- need_here_doc--;
- }
+ tflags |= LEX_INCASE;
+/*itrace("parse_comsub:%d: found `case', lex_incase -> 1", line_number);*/
}
+ else if (STREQN (ret + retind - 4, "esac", 4))
+{
+ tflags &= ~LEX_INCASE;
+/*itrace("parse_comsub:%d: found `esac', lex_incase -> 0", line_number);*/
+}
+ tflags &= ~LEX_RESWDOK;
+ }
+ else if (shellbreak (ch) == 0)
+{
+ tflags &= ~LEX_RESWDOK;
+/*itrace("parse_comsub:%d: found `%c', lex_reswordok -> 0", line_number, ch);*/
+}
+ }
-/* When non-zero, an open-brace used to create a group is awaiting a close
- brace partner. */
-static int open_brace_count;
-
-#define command_token_position(token) \
- (((token) == ASSIGNMENT_WORD) || \
- ((token) != SEMI_SEMI && reserved_word_acceptable(token)))
+ if MBTEST((tflags & LEX_INCOMMENT) == 0 && (tflags & LEX_CKCASE) && ch == '<')
+ {
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
+ peekc = shell_getc (1);
+ if (peekc == EOF)
+ goto eof_error;
+ if (peekc == ch)
+ {
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = peekc;
+ peekc = shell_getc (1);
+ if (peekc == EOF)
+ goto eof_error;
+ if (peekc == '-')
+ {
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = peekc;
+ tflags |= LEX_STRIPDOC;
+ }
+ else
+ shell_ungetc (peekc);
+ tflags |= LEX_HEREDELIM;
+ lex_firstind = -1;
+ continue;
+ }
+ else
+ ch = peekc; /* fall through and continue XXX - this skips comments if peekc == '#' */
+ }
+ /* Not exactly right yet, should handle shell metacharacters, too. If
+ any changes are made to this test, make analogous changes to subst.c:
+ extract_delimited_string(). */
+ else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || shellblank (ret[retind - 1])))
+ tflags |= LEX_INCOMMENT;
-#define assignment_acceptable(token) command_token_position(token) && \
- ((parser_state & PST_CASEPAT) == 0)
+ if (tflags & LEX_PASSNEXT) /* last char was backslash */
+ {
+ tflags &= ~LEX_PASSNEXT;
+ if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */
+ {
+ if (retind > 0)
+ retind--; /* swallow previously-added backslash */
+ continue;
+ }
-/* Check to see if TOKEN is a reserved word and return the token
- value if it is. */
-#define CHECK_FOR_RESERVED_WORD(tok) \
- do { \
- if (!dollar_present && !quoted && \
- reserved_word_acceptable (last_read_token)) \
- { \
- int i; \
- for (i = 0; word_token_alist[i].word != (char *)NULL; i++) \
- if (STREQ (tok, word_token_alist[i].word)) \
- { \
- if ((parser_state & PST_CASEPAT) && (word_token_alist[i].token != ESAC)) \
- break; \
- if (word_token_alist[i].token == ESAC) \
- parser_state &= ~(PST_CASEPAT|PST_CASESTMT); \
- else if (word_token_alist[i].token == CASE) \
- parser_state |= PST_CASESTMT; \
- else if (word_token_alist[i].token == '{') \
- open_brace_count++; \
- else if (word_token_alist[i].token == '}' && open_brace_count) \
- open_brace_count--; \
- return (word_token_alist[i].token); \
- } \
- } \
- } while (0)
+ RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
+ if MBTEST(ch == CTLESC || ch == CTLNUL)
+ ret[retind++] = CTLESC;
+ ret[retind++] = ch;
+ continue;
+ }
+ else if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */
+ {
+ RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
+ ret[retind++] = CTLESC;
+ ret[retind++] = ch;
+ continue;
+ }
+#if 0
+ else if MBTEST((tflags & LEX_INCASE) && ch == close && close == ')')
+ tflags &= ~LEX_INCASE; /* XXX */
+#endif
+ else if MBTEST(ch == close && (tflags & LEX_INCASE) == 0) /* ending delimiter */
+{
+ count--;
+/*itrace("parse_comsub:%d: found close: count = %d", line_number, count);*/
+}
+ else if MBTEST(((flags & P_FIRSTCLOSE) == 0) && (tflags & LEX_INCASE) == 0 && ch == open) /* nested begin */
+ count++;
-#if defined (ALIAS)
+ /* Add this character. */
+ RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
+ ret[retind++] = ch;
- /* OK, we have a token. Let's try to alias expand it, if (and only if)
- it's eligible.
+ /* If we just read the ending character, don't bother continuing. */
+ if (count == 0)
+ break;
- It is eligible for expansion if the shell is in interactive mode, and
- the token is unquoted and the last token read was a command
- separator (or expand_next_token is set), and we are currently
- processing an alias (pushed_string_list is non-empty) and this
- token is not the same as the current or any previously
- processed alias.
+ if MBTEST(ch == '\\') /* backslashes */
+ tflags |= LEX_PASSNEXT;
- Special cases that disqualify:
- In a pattern list in a case statement (parser_state & PST_CASEPAT). */
-static int
-alias_expand_token (token)
- char *token;
-{
- char *expanded;
- alias_t *ap;
+ if MBTEST(shellquote (ch))
+ {
+ /* '', ``, or "" inside $(...). */
+ push_delimiter (dstack, ch);
+ if MBTEST((tflags & LEX_WASDOL) && ch == '\'') /* $'...' inside group */
+ nestret = parse_matched_pair (ch, ch, ch, &nestlen, P_ALLOWESC|rflags);
+ else
+ nestret = parse_matched_pair (ch, ch, ch, &nestlen, rflags);
+ pop_delimiter (dstack);
+ CHECK_NESTRET_ERROR ();
- if (((parser_state & PST_ALEXPNEXT) || command_token_position (last_read_token)) &&
- (parser_state & PST_CASEPAT) == 0)
- {
- ap = find_alias (token);
+ if MBTEST((tflags & LEX_WASDOL) && ch == '\'' && (extended_quote || (rflags & P_DQUOTE) == 0))
+ {
+ /* Translate $'...' here. */
+ ttrans = ansiexpand (nestret, 0, nestlen - 1, &ttranslen);
+ xfree (nestret);
- /* Currently expanding this token. */
- if (ap && (ap->flags & AL_BEINGEXPANDED))
- return (NO_EXPANSION);
+ if ((rflags & P_DQUOTE) == 0)
+ {
+ nestret = sh_single_quote (ttrans);
+ free (ttrans);
+ nestlen = strlen (nestret);
+ }
+ else
+ {
+ nestret = ttrans;
+ nestlen = ttranslen;
+ }
+ retind -= 2; /* back up before the $' */
+ }
+ else if MBTEST((tflags & LEX_WASDOL) && ch == '"' && (extended_quote || (rflags & P_DQUOTE) == 0))
+ {
+ /* Locale expand $"..." here. */
+ ttrans = localeexpand (nestret, 0, nestlen - 1, start_lineno, &ttranslen);
+ xfree (nestret);
+
+ nestret = sh_mkdoublequoted (ttrans, ttranslen, 0);
+ free (ttrans);
+ nestlen = ttranslen + 2;
+ retind -= 2; /* back up before the $" */
+ }
- expanded = ap ? savestring (ap->value) : (char *)NULL;
- if (expanded)
+ APPEND_NESTRET ();
+ FREE (nestret);
+ }
+ else if MBTEST((tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */
+ /* check for $(), $[], or ${} inside command substitution. */
{
- push_string (expanded, ap->flags & AL_EXPANDNEXT, ap);
- return (RE_READ_TOKEN);
+ if ((tflags & LEX_INCASE) == 0 && open == ch) /* undo previous increment */
+ count--;
+ if (ch == '(') /* ) */
+ nestret = parse_comsub (0, '(', ')', &nestlen, (rflags|P_COMMAND) & ~P_DQUOTE);
+ else if (ch == '{') /* } */
+ nestret = parse_matched_pair (0, '{', '}', &nestlen, P_FIRSTCLOSE|rflags);
+ else if (ch == '[') /* ] */
+ nestret = parse_matched_pair (0, '[', ']', &nestlen, rflags);
+
+ CHECK_NESTRET_ERROR ();
+ APPEND_NESTRET ();
+
+ FREE (nestret);
}
+ if MBTEST(ch == '$')
+ tflags |= LEX_WASDOL;
else
- /* This is an eligible token that does not have an expansion. */
- return (NO_EXPANSION);
+ tflags &= ~LEX_WASDOL;
}
- return (NO_EXPANSION);
+
+ FREE (heredelim);
+ ret[retind] = '\0';
+ if (lenp)
+ *lenp = retind;
+/*itrace("parse_comsub:%d: returning `%s'", line_number, ret);*/
+ return ret;
}
-#endif /* ALIAS */
-/* Handle special cases of token recognition:
- IN is recognized if the last token was WORD and the token
- before that was FOR or CASE or SELECT.
+/* XXX - this needs to handle functionality like subst.c:no_longjmp_on_fatal_error;
+ maybe extract_command_subst should handle it. */
+char *
+xparse_dolparen (base, string, indp, flags)
+ char *base;
+ char *string;
+ int *indp;
+ int flags;
+{
+ sh_parser_state_t ps;
+ int orig_ind, nc, sflags;
+ char *ret, *s, *ep, *ostring;
- DO is recognized if the last token was WORD and the token
- before that was FOR or SELECT.
+ /*yydebug = 1;*/
+ orig_ind = *indp;
+ ostring = string;
- ESAC is recognized if the last token caused `esacs_needed_count'
- to be set
+ sflags = SEVAL_NONINT|SEVAL_NOHIST|SEVAL_NOFREE;
+ if (flags & SX_NOLONGJMP)
+ sflags |= SEVAL_NOLONGJMP;
+ save_parser_state (&ps);
- `{' is recognized if the last token as WORD and the token
- before that was FUNCTION.
+ /*(*/
+ parser_state |= PST_CMDSUBST|PST_EOFTOKEN; /* allow instant ')' */ /*(*/
+ shell_eof_token = ')';
+ parse_string (string, "command substitution", sflags, &ep);
- `}' is recognized if there is an unclosed `{' prsent.
-*/
+ restore_parser_state (&ps);
+ reset_parser ();
+ if (interactive)
+ token_to_read = 0;
-static int
-special_case_tokens (token)
- char *token;
-{
- if ((last_read_token == WORD) &&
-#if defined (SELECT_COMMAND)
- ((token_before_that == FOR) || (token_before_that == CASE) || (token_before_that == SELECT)) &&
-#else
- ((token_before_that == FOR) || (token_before_that == CASE)) &&
-#endif
- (token[0] == 'i' && token[1] == 'n' && token[2] == 0))
+ /* Need to find how many characters parse_and_execute consumed, update
+ *indp, if flags != 0, copy the portion of the string parsed into RET
+ and return it. If flags & 1 (EX_NOALLOC) we can return NULL. */
+
+ /*(*/
+ if (ep[-1] != ')')
{
- if (token_before_that == CASE)
- {
- parser_state |= PST_CASEPAT;
- esacs_needed_count++;
- }
- return (IN);
+#if DEBUG
+ if (ep[-1] != '\n')
+ itrace("xparse_dolparen:%d: ep[-1] != RPAREN (%d), ep = `%s'", line_number, ep[-1], ep);
+#endif
+ while (ep > ostring && ep[-1] == '\n') ep--;
}
- if (last_read_token == WORD &&
-#if defined (SELECT_COMMAND)
- (token_before_that == FOR || token_before_that == SELECT) &&
-#else
- (token_before_that == FOR) &&
-#endif
- (token[0] == 'd' && token[1] == 'o' && token[2] == '\0'))
- return (DO);
+ nc = ep - ostring;
+ *indp = ep - base - 1;
- /* Ditto for ESAC in the CASE case.
- Specifically, this handles "case word in esac", which is a legal
- construct, certainly because someone will pass an empty arg to the
- case construct, and we don't want it to barf. Of course, we should
- insist that the case construct has at least one pattern in it, but
- the designers disagree. */
- if (esacs_needed_count)
- {
- esacs_needed_count--;
- if (STREQ (token, "esac"))
- {
- parser_state &= ~PST_CASEPAT;
- return (ESAC);
- }
- }
+ /*(*/
+#if DEBUG
+ if (base[*indp] != ')')
+ itrace("xparse_dolparen:%d: base[%d] != RPAREN (%d), base = `%s'", line_number, *indp, base[*indp], base);
+#endif
- /* The start of a shell function definition. */
- if (parser_state & PST_ALLOWOPNBRC)
- {
- parser_state &= ~PST_ALLOWOPNBRC;
- if (token[0] == '{' && token[1] == '\0') /* } */
- {
- open_brace_count++;
- function_bstart = line_number;
- return ('{'); /* } */
- }
- }
+ if (flags & SX_NOALLOC)
+ return (char *)NULL;
- if (open_brace_count && reserved_word_acceptable (last_read_token) && token[0] == '}' && !token[1])
+ if (nc == 0)
{
- open_brace_count--; /* { */
- return ('}');
+ ret = xmalloc (1);
+ ret[0] = '\0';
}
+ else
+ ret = substring (ostring, 0, nc - 1);
- /* Handle -p after `time'. */
- if (last_read_token == TIME && token[0] == '-' && token[1] == 'p' && !token[2])
- return (TIMEOPT);
-
- return (-1);
+ return ret;
}
-/* Called from shell.c when Control-C is typed at top level. Or
- by the error rule at top level. */
-void
-reset_parser ()
+#if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND)
+/* Parse a double-paren construct. It can be either an arithmetic
+ command, an arithmetic `for' command, or a nested subshell. Returns
+ the parsed token, -1 on error, or -2 if we didn't do anything and
+ should just go on. */
+static int
+parse_dparen (c)
+ int c;
{
- dstack.delimiter_depth = 0; /* No delimiters found so far. */
- open_brace_count = 0;
-
- parser_state = 0;
+ int cmdtyp, sline;
+ char *wval;
+ WORD_DESC *wd;
-#if defined (ALIAS)
- if (pushed_string_list)
+#if defined (ARITH_FOR_COMMAND)
+ if (last_read_token == FOR)
{
- free_string_list ();
- pushed_string_list = (STRING_SAVER *)NULL;
+ arith_for_lineno = line_number;
+ cmdtyp = parse_arith_cmd (&wval, 0);
+ if (cmdtyp == 1)
+ {
+ wd = alloc_word_desc ();
+ wd->word = wval;
+ yylval.word_list = make_word_list (wd, (WORD_LIST *)NULL);
+ return (ARITH_FOR_EXPRS);
+ }
+ else
+ return -1; /* ERROR */
}
-#endif /* ALIAS */
+#endif
- if (shell_input_line)
+#if defined (DPAREN_ARITHMETIC)
+ if (reserved_word_acceptable (last_read_token))
{
- free (shell_input_line);
- shell_input_line = (char *)NULL;
- shell_input_line_size = shell_input_line_index = 0;
- }
+ sline = line_number;
- FREE (word_desc_to_read);
- word_desc_to_read = (WORD_DESC *)NULL;
+ cmdtyp = parse_arith_cmd (&wval, 0);
+ if (cmdtyp == 1) /* arithmetic command */
+ {
+ wd = alloc_word_desc ();
+ wd->word = wval;
+ wd->flags = W_QUOTED|W_NOSPLIT|W_NOGLOB|W_DQUOTE;
+ yylval.word_list = make_word_list (wd, (WORD_LIST *)NULL);
+ return (ARITH_CMD);
+ }
+ else if (cmdtyp == 0) /* nested subshell */
+ {
+ push_string (wval, 0, (alias_t *)NULL);
+ if ((parser_state & PST_CASEPAT) == 0)
+ parser_state |= PST_SUBSHELL;
+ return (c);
+ }
+ else /* ERROR */
+ return -1;
+ }
+#endif
- last_read_token = '\n';
- token_to_read = '\n';
+ return -2; /* XXX */
}
-/* Read the next token. Command can be READ (normal operation) or
- RESET (to normalize state). */
+/* We've seen a `(('. Look for the matching `))'. If we get it, return 1.
+ If not, assume it's a nested subshell for backwards compatibility and
+ return 0. In any case, put the characters we've consumed into a locally-
+ allocated buffer and make *ep point to that buffer. Return -1 on an
+ error, for example EOF. */
static int
-read_token (command)
- int command;
+parse_arith_cmd (ep, adddq)
+ char **ep;
+ int adddq;
{
- int character; /* Current character. */
- int peek_char; /* Temporary look-ahead character. */
- int result; /* The thing to return. */
-
- if (command == RESET)
- {
- reset_parser ();
- return ('\n');
- }
-
- if (token_to_read)
+ int exp_lineno, rval, c;
+ char *ttok, *tokstr;
+ int ttoklen;
+
+ exp_lineno = line_number;
+ ttok = parse_matched_pair (0, '(', ')', &ttoklen, 0);
+ rval = 1;
+ if (ttok == &matched_pair_error)
+ return -1;
+ /* Check that the next character is the closing right paren. If
+ not, this is a syntax error. ( */
+ c = shell_getc (0);
+ if MBTEST(c != ')')
+ rval = 0;
+
+ tokstr = (char *)xmalloc (ttoklen + 4);
+
+ /* if ADDDQ != 0 then (( ... )) -> "..." */
+ if (rval == 1 && adddq) /* arith cmd, add double quotes */
{
- result = token_to_read;
- if (token_to_read == WORD || token_to_read == ASSIGNMENT_WORD)
- yylval.word = word_desc_to_read;
- token_to_read = 0;
- return (result);
+ tokstr[0] = '"';
+ strncpy (tokstr + 1, ttok, ttoklen - 1);
+ tokstr[ttoklen] = '"';
+ tokstr[ttoklen+1] = '\0';
}
-
-#if defined (ALIAS)
- /* This is a place to jump back to once we have successfully expanded a
- token with an alias and pushed the string with push_string () */
- re_read_token:
-#endif /* ALIAS */
-
- /* Read a single word from input. Start by skipping blanks. */
- while ((character = shell_getc (1)) != EOF && whitespace (character))
- ;
-
- if (character == EOF)
+ else if (rval == 1) /* arith cmd, don't add double quotes */
{
- EOF_Reached = 1;
- return (yacc_EOF);
+ strncpy (tokstr, ttok, ttoklen - 1);
+ tokstr[ttoklen-1] = '\0';
}
-
- if (character == '#' && (!interactive || interactive_comments))
+ else /* nested subshell */
{
- /* A comment. Discard until EOL or EOF, and then return a newline. */
- discard_until ('\n');
- shell_getc (0);
- character = '\n'; /* this will take the next if statement and return. */
+ tokstr[0] = '(';
+ strncpy (tokstr + 1, ttok, ttoklen - 1);
+ tokstr[ttoklen] = ')';
+ tokstr[ttoklen+1] = c;
+ tokstr[ttoklen+2] = '\0';
}
- if (character == '\n')
- {
- /* If we're about to return an unquoted newline, we can go and collect
- the text of any pending here document. */
- if (need_here_doc)
- gather_here_documents ();
-
-#if defined (ALIAS)
- parser_state &= ~PST_ALEXPNEXT;
-#endif /* ALIAS */
+ *ep = tokstr;
+ FREE (ttok);
+ return rval;
+}
+#endif /* DPAREN_ARITHMETIC || ARITH_FOR_COMMAND */
- return (character);
- }
+#if defined (COND_COMMAND)
+static void
+cond_error ()
+{
+ char *etext;
- /* Shell meta-characters. */
- if (shellmeta (character) && ((parser_state & PST_DBLPAREN) == 0))
+ if (EOF_Reached && cond_token != COND_ERROR) /* [[ */
+ parser_error (cond_lineno, _("unexpected EOF while looking for `]]'"));
+ else if (cond_token != COND_ERROR)
{
-#if defined (ALIAS)
- /* Turn off alias tokenization iff this character sequence would
- not leave us ready to read a command. */
- if (character == '<' || character == '>')
- parser_state &= ~PST_ALEXPNEXT;
-#endif /* ALIAS */
-
- peek_char = shell_getc (1);
- if (character == peek_char)
- {
- switch (character)
- {
- case '<':
- /* If '<' then we could be at "<<" or at "<<-". We have to
- look ahead one more character. */
- peek_char = shell_getc (1);
- if (peek_char == '-')
- return (LESS_LESS_MINUS);
- else
- {
- shell_ungetc (peek_char);
- return (LESS_LESS);
- }
-
- case '>':
- return (GREATER_GREATER);
-
- case ';':
- parser_state |= PST_CASEPAT;
-#if defined (ALIAS)
- parser_state &= ~PST_ALEXPNEXT;
-#endif /* ALIAS */
- return (SEMI_SEMI);
-
- case '&':
- return (AND_AND);
-
- case '|':
- return (OR_OR);
-
-#if defined (DPAREN_ARITHMETIC)
- case '(': /* ) */
- if (reserved_word_acceptable (last_read_token))
- {
- parser_state |= PST_DBLPAREN;
- yylval.word = make_word ("let");
- return (WORD);
- }
- break;
-#endif
- }
- }
- else if (character == '<' && peek_char == '&')
- return (LESS_AND);
- else if (character == '>' && peek_char == '&')
- return (GREATER_AND);
- else if (character == '<' && peek_char == '>')
- return (LESS_GREATER);
- else if (character == '>' && peek_char == '|')
- return (GREATER_BAR);
- else if (peek_char == '>' && character == '&')
- return (AND_GREATER);
-
- shell_ungetc (peek_char);
-
- /* If we look like we are reading the start of a function
- definition, then let the reader know about it so that
- we will do the right thing with `{'. */
- if (character == ')' && last_read_token == '(' && token_before_that == WORD)
+ if (etext = error_token_from_token (cond_token))
{
- parser_state |= PST_ALLOWOPNBRC;
-#if defined (ALIAS)
- parser_state &= ~PST_ALEXPNEXT;
-#endif /* ALIAS */
- function_dstart = line_number;
+ parser_error (cond_lineno, _("syntax error in conditional expression: unexpected token `%s'"), etext);
+ free (etext);
}
-
- /* case pattern lists may be preceded by an optional left paren. If
- we're not trying to parse a case pattern list, the left paren
- indicates a subshell. */
- if (character == '(' && (parser_state & PST_CASEPAT) == 0) /* ) */
- parser_state |= PST_SUBSHELL;
- /*(*/
- else if ((parser_state & PST_CASEPAT) && character == ')')
- parser_state &= ~PST_CASEPAT;
- /*(*/
- else if ((parser_state & PST_SUBSHELL) && character == ')')
- parser_state &= ~PST_SUBSHELL;
-
-#if defined (PROCESS_SUBSTITUTION)
- /* Check for the constructs which introduce process substitution.
- Shells running in `posix mode' don't do process substitution. */
- if (posixly_correct ||
- ((character != '>' && character != '<') || peek_char != '('))
-#endif /* PROCESS_SUBSTITUTION */
- return (character);
+ else
+ parser_error (cond_lineno, _("syntax error in conditional expression"));
}
-
- /* Hack <&- (close stdin) case. */
- if (character == '-' && (last_read_token == LESS_AND || last_read_token == GREATER_AND))
- return (character);
-
- /* Okay, if we got this far, we have to read a word. Read one,
- and then check it against the known ones. */
- result = read_token_word (character);
-#if defined (ALIAS)
- if (result == RE_READ_TOKEN)
- goto re_read_token;
-#endif
- return result;
}
-/* Match a $(...) or other grouping construct. This has to handle embedded
- quoted strings ('', ``, "") and nested constructs. It also must handle
- reprompting the user, if necessary, after reading a newline, and returning
- correct error values if it reads EOF. */
-static char matched_pair_error;
-static char *
-parse_matched_pair (qc, open, close, lenp, flags)
- int qc; /* `"' if this construct is within double quotes */
- int open, close;
- int *lenp, flags;
+static COND_COM *
+cond_expr ()
+{
+ return (cond_or ());
+}
+
+static COND_COM *
+cond_or ()
{
- int count, ch, was_dollar;
- int pass_next_character, nestlen, start_lineno;
- char *ret, *nestret;
- int retind, retsize;
+ COND_COM *l, *r;
- count = 1;
- pass_next_character = was_dollar = 0;
+ l = cond_and ();
+ if (cond_token == OR_OR)
+ {
+ r = cond_or ();
+ l = make_cond_node (COND_OR, (WORD_DESC *)NULL, l, r);
+ }
+ return l;
+}
- ret = xmalloc (retsize = 64);
- retind = 0;
+static COND_COM *
+cond_and ()
+{
+ COND_COM *l, *r;
- start_lineno = line_number;
- while (count)
+ l = cond_term ();
+ if (cond_token == AND_AND)
{
- ch = shell_getc (qc != '\'' && pass_next_character == 0);
- if (ch == EOF)
- {
- free (ret);
- parser_error (start_lineno, "unexpected EOF while looking for matching `%c'", close);
- EOF_Reached = 1; /* XXX */
- return (&matched_pair_error);
- }
+ r = cond_and ();
+ l = make_cond_node (COND_AND, (WORD_DESC *)NULL, l, r);
+ }
+ return l;
+}
- /* Possible reprompting. */
- if (ch == '\n' && interactive &&
- (bash_input.type == st_stdin || bash_input.type == st_stream))
+static int
+cond_skip_newlines ()
+{
+ while ((cond_token = read_token (READ)) == '\n')
+ {
+ if (SHOULD_PROMPT ())
prompt_again ();
+ }
+ return (cond_token);
+}
+
+#define COND_RETURN_ERROR() \
+ do { cond_token = COND_ERROR; return ((COND_COM *)NULL); } while (0)
- if (pass_next_character) /* last char was backslash */
+static COND_COM *
+cond_term ()
+{
+ WORD_DESC *op;
+ COND_COM *term, *tleft, *tright;
+ int tok, lineno;
+ char *etext;
+
+ /* Read a token. It can be a left paren, a `!', a unary operator, or a
+ word that should be the first argument of a binary operator. Start by
+ skipping newlines, since this is a compound command. */
+ tok = cond_skip_newlines ();
+ lineno = line_number;
+ if (tok == COND_END)
+ {
+ COND_RETURN_ERROR ();
+ }
+ else if (tok == '(')
+ {
+ term = cond_expr ();
+ if (cond_token != ')')
{
- pass_next_character = 0;
- if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */
+ if (term)
+ dispose_cond_node (term); /* ( */
+ if (etext = error_token_from_token (cond_token))
{
- if (retind > 0) retind--; /* swallow previously-added backslash */
- continue;
+ parser_error (lineno, _("unexpected token `%s', expected `)'"), etext);
+ free (etext);
}
-
- RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
- if (ch == CTLESC || ch == CTLNUL)
- ret[retind++] = CTLESC;
- ret[retind++] = ch;
- continue;
+ else
+ parser_error (lineno, _("expected `)'"));
+ COND_RETURN_ERROR ();
}
- else if (ch == CTLESC || ch == CTLNUL) /* special shell escapes */
+ term = make_cond_node (COND_EXPR, (WORD_DESC *)NULL, term, (COND_COM *)NULL);
+ (void)cond_skip_newlines ();
+ }
+ else if (tok == BANG || (tok == WORD && (yylval.word->word[0] == '!' && yylval.word->word[1] == '\0')))
+ {
+ if (tok == WORD)
+ dispose_word (yylval.word); /* not needed */
+ term = cond_term ();
+ if (term)
+ term->flags |= CMD_INVERT_RETURN;
+ }
+ else if (tok == WORD && yylval.word->word[0] == '-' && yylval.word->word[2] == 0 && test_unop (yylval.word->word))
+ {
+ op = yylval.word;
+ tok = read_token (READ);
+ if (tok == WORD)
{
- RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
- ret[retind++] = CTLESC;
- ret[retind++] = ch;
- continue;
+ tleft = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL);
+ term = make_cond_node (COND_UNARY, op, tleft, (COND_COM *)NULL);
}
- else if (ch == close) /* ending delimiter */
- count--;
- else if (ch == open) /* nested begin */
- count++;
-
- /* Add this character. */
- RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
- ret[retind++] = ch;
-
- if (open == '\'') /* '' inside grouping construct */
- continue;
-
- if (ch == '\\') /* backslashes */
- pass_next_character++;
-
- if (open != close) /* a grouping construct */
+ else
{
- if (shellquote (ch))
+ dispose_word (op);
+ if (etext = error_token_from_token (tok))
{
- /* '', ``, or "" inside $(...) or other grouping construct. */
- push_delimiter (dstack, ch);
- nestret = parse_matched_pair (ch, ch, ch, &nestlen, 0);
- pop_delimiter (dstack);
- if (nestret == &matched_pair_error)
- {
- free (ret);
- return &matched_pair_error;
- }
- if (nestlen)
- {
- RESIZE_MALLOCED_BUFFER (ret, retind, nestlen, retsize, 64);
- strcpy (ret + retind, nestret);
- retind += nestlen;
- }
- FREE (nestret);
+ parser_error (line_number, _("unexpected argument `%s' to conditional unary operator"), etext);
+ free (etext);
}
+ else
+ parser_error (line_number, _("unexpected argument to conditional unary operator"));
+ COND_RETURN_ERROR ();
}
- /* Parse an old-style command substitution within double quotes as a
- single word. */
- /* XXX - sh and ksh93 don't do this - XXX */
- else if (open == '"' && ch == '`')
+
+ (void)cond_skip_newlines ();
+ }
+ else if (tok == WORD) /* left argument to binary operator */
+ {
+ /* lhs */
+ tleft = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL);
+
+ /* binop */
+ tok = read_token (READ);
+ if (tok == WORD && test_binop (yylval.word->word))
+ op = yylval.word;
+#if defined (COND_REGEXP)
+ else if (tok == WORD && STREQ (yylval.word->word, "=~"))
{
- nestret = parse_matched_pair (0, '`', '`', &nestlen, 0);
- if (nestret == &matched_pair_error)
- {
- free (ret);
- return &matched_pair_error;
- }
- if (nestlen)
- {
- RESIZE_MALLOCED_BUFFER (ret, retind, nestlen, retsize, 64);
- strcpy (ret + retind, nestret);
- retind += nestlen;
- }
- FREE (nestret);
+ op = yylval.word;
+ parser_state |= PST_REGEXP;
}
- else if (was_dollar && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */
- /* check for $(), $[], or ${} inside quoted string. */
+#endif
+ else if (tok == '<' || tok == '>')
+ op = make_word_from_token (tok); /* ( */
+ /* There should be a check before blindly accepting the `)' that we have
+ seen the opening `('. */
+ else if (tok == COND_END || tok == AND_AND || tok == OR_OR || tok == ')')
{
- if (open == ch) /* undo previous increment */
- count--;
- if (ch == '(') /* ) */
- nestret = parse_matched_pair (0, '(', ')', &nestlen, 0);
- else if (ch == '{') /* } */
- nestret = parse_matched_pair (0, '{', '}', &nestlen, 0);
- else if (ch == '[') /* ] */
- nestret = parse_matched_pair (0, '[', ']', &nestlen, 0);
- if (nestret == &matched_pair_error)
+ /* Special case. [[ x ]] is equivalent to [[ -n x ]], just like
+ the test command. Similarly for [[ x && expr ]] or
+ [[ x || expr ]] or [[ (x) ]]. */
+ op = make_word ("-n");
+ term = make_cond_node (COND_UNARY, op, tleft, (COND_COM *)NULL);
+ cond_token = tok;
+ return (term);
+ }
+ else
+ {
+ if (etext = error_token_from_token (tok))
{
- free (ret);
- return &matched_pair_error;
+ parser_error (line_number, _("unexpected token `%s', conditional binary operator expected"), etext);
+ free (etext);
}
- if (nestlen)
+ else
+ parser_error (line_number, _("conditional binary operator expected"));
+ dispose_cond_node (tleft);
+ COND_RETURN_ERROR ();
+ }
+
+ /* rhs */
+ tok = read_token (READ);
+ parser_state &= ~PST_REGEXP;
+ if (tok == WORD)
+ {
+ tright = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL);
+ term = make_cond_node (COND_BINARY, op, tleft, tright);
+ }
+ else
+ {
+ if (etext = error_token_from_token (tok))
{
- RESIZE_MALLOCED_BUFFER (ret, retind, nestlen, retsize, 64);
- strcpy (ret + retind, nestret);
- retind += nestlen;
+ parser_error (line_number, _("unexpected argument `%s' to conditional binary operator"), etext);
+ free (etext);
}
- FREE (nestret);
+ else
+ parser_error (line_number, _("unexpected argument to conditional binary operator"));
+ dispose_cond_node (tleft);
+ dispose_word (op);
+ COND_RETURN_ERROR ();
+ }
+
+ (void)cond_skip_newlines ();
+ }
+ else
+ {
+ if (tok < 256)
+ parser_error (line_number, _("unexpected token `%c' in conditional command"), tok);
+ else if (etext = error_token_from_token (tok))
+ {
+ parser_error (line_number, _("unexpected token `%s' in conditional command"), etext);
+ free (etext);
}
- was_dollar = (ch == '$');
+ else
+ parser_error (line_number, _("unexpected token %d in conditional command"), tok);
+ COND_RETURN_ERROR ();
}
+ return (term);
+}
- ret[retind] = '\0';
- if (lenp)
- *lenp = retind;
- return ret;
+/* This is kind of bogus -- we slip a mini recursive-descent parser in
+ here to handle the conditional statement syntax. */
+static COMMAND *
+parse_cond_command ()
+{
+ COND_COM *cexp;
+
+ cexp = cond_expr ();
+ return (make_cond_command (cexp));
+}
+#endif
+
+#if defined (ARRAY_VARS)
+/* When this is called, it's guaranteed that we don't care about anything
+ in t beyond i. We do save and restore the chars, though. */
+static int
+token_is_assignment (t, i)
+ char *t;
+ int i;
+{
+ unsigned char c, c1;
+ int r;
+
+ c = t[i]; c1 = t[i+1];
+ t[i] = '='; t[i+1] = '\0';
+ r = assignment (t, (parser_state & PST_COMPASSIGN) != 0);
+ t[i] = c; t[i+1] = c1;
+ return r;
+}
+
+/* XXX - possible changes here for `+=' */
+static int
+token_is_ident (t, i)
+ char *t;
+ int i;
+{
+ unsigned char c;
+ int r;
+
+ c = t[i];
+ t[i] = '\0';
+ r = legal_identifier (t);
+ t[i] = c;
+ return r;
}
+#endif
static int
read_token_word (character)
int token_index;
/* ALL_DIGITS becomes zero when we see a non-digit. */
- int all_digits;
+ int all_digit_token;
/* DOLLAR_PRESENT becomes non-zero if we see a `$'. */
int dollar_present;
+ /* COMPOUND_ASSIGNMENT becomes non-zero if we are parsing a compound
+ assignment. */
+ int compound_assignment;
+
/* QUOTED becomes non-zero if we see one of ("), ('), (`), or (\). */
int quoted;
int result, peek_char;
char *ttok, *ttrans;
int ttoklen, ttranslen;
+ intmax_t lvalue;
- if (token_buffer_size < TOKEN_DEFAULT_GROW_SIZE)
- {
- FREE (token);
- token = xmalloc (token_buffer_size = TOKEN_DEFAULT_GROW_SIZE);
- }
+ if (token_buffer_size < TOKEN_DEFAULT_INITIAL_SIZE)
+ token = (char *)xrealloc (token, token_buffer_size = TOKEN_DEFAULT_INITIAL_SIZE);
token_index = 0;
- all_digits = digit (character);
- dollar_present = quoted = pass_next_character = 0;
+ all_digit_token = DIGIT (character);
+ dollar_present = quoted = pass_next_character = compound_assignment = 0;
for (;;)
{
if (pass_next_character)
{
pass_next_character = 0;
- goto got_character;
+ goto got_escaped_character;
}
cd = current_delimiter (dstack);
/* Handle backslashes. Quote lots of things when not inside of
double-quotes, quote some things inside of double-quotes. */
- if (character == '\\')
+ if MBTEST(character == '\\')
{
peek_char = shell_getc (0);
/* If the next character is to be quoted, note it now. */
if (cd == 0 || cd == '`' ||
- (cd == '"' && member (peek_char, slashify_in_quotes)))
+ (cd == '"' && peek_char >= 0 && (sh_syntaxtab[peek_char] & CBSDQUOTE)))
pass_next_character++;
quoted = 1;
}
}
-#if defined (DPAREN_ARITHMETIC)
- /* Parse a ksh-style ((...)) expression. */
- if (parser_state & PST_DBLPAREN)
+ /* Parse a matched pair of quote characters. */
+ if MBTEST(shellquote (character))
{
- int exp_lineno;
-
- /* If we've already consumed a right paren that should be part of
- the expression, push it back so the paren matching code won't
- return prematurely. */
- if (character == '(') /* ) */
- shell_ungetc (character);
- exp_lineno = line_number;
- ttok = parse_matched_pair (0, '(', ')', &ttoklen, 0);
- parser_state &= ~PST_DBLPAREN;
+ push_delimiter (dstack, character);
+ ttok = parse_matched_pair (character, character, character, &ttoklen, (character == '`') ? P_COMMAND : 0);
+ pop_delimiter (dstack);
if (ttok == &matched_pair_error)
- return -1;
- /* Check that the next character is the closing right paren. If
- not, this is a syntax error. ( */
- if (shell_getc (0) != ')')
- {
- FREE (ttok); /* ( */
- parser_error (exp_lineno, "missing closing `)' for arithmetic expression");
- return -1;
- }
- RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 4,
+ return -1; /* Bail immediately. */
+ RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
token_buffer_size, TOKEN_DEFAULT_GROW_SIZE);
- token[token_index++] = '"';
- if (character != '(') /* ) */
- token[token_index++] = character;
- strncpy (token + token_index, ttok, ttoklen - 1);
- token_index += ttoklen - 1;
- token[token_index++] = '"';
- FREE (ttok);
- dollar_present = all_digits = 0;
+ token[token_index++] = character;
+ strcpy (token + token_index, ttok);
+ token_index += ttoklen;
+ all_digit_token = 0;
quoted = 1;
- goto got_token;
+ dollar_present |= (character == '"' && strchr (ttok, '$') != 0);
+ FREE (ttok);
+ goto next_character;
}
-#endif /* DPAREN_ARITHMETIC */
- /* Parse a matched pair of quote characters. */
- if (shellquote (character))
+#ifdef COND_REGEXP
+ /* When parsing a regexp as a single word inside a conditional command,
+ we need to special-case characters special to both the shell and
+ regular expressions. Right now, that is only '(' and '|'. */ /*)*/
+ if MBTEST((parser_state & PST_REGEXP) && (character == '(' || character == '|')) /*)*/
{
+ if (character == '|')
+ goto got_character;
+
push_delimiter (dstack, character);
- ttok = parse_matched_pair (character, character, character, &ttoklen, 0);
+ ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0);
pop_delimiter (dstack);
if (ttok == &matched_pair_error)
return -1; /* Bail immediately. */
token[token_index++] = character;
strcpy (token + token_index, ttok);
token_index += ttoklen;
- all_digits = 0;
- quoted = 1;
- dollar_present |= (character == '"' && strchr (ttok, '$') != 0);
FREE (ttok);
+ dollar_present = all_digit_token = 0;
goto next_character;
}
+#endif /* COND_REGEXP */
+
+#ifdef EXTENDED_GLOB
+ /* Parse a ksh-style extended pattern matching specification. */
+ if MBTEST(extended_glob && PATTERN_CHAR (character))
+ {
+ peek_char = shell_getc (1);
+ if MBTEST(peek_char == '(') /* ) */
+ {
+ push_delimiter (dstack, peek_char);
+ ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0);
+ pop_delimiter (dstack);
+ if (ttok == &matched_pair_error)
+ return -1; /* Bail immediately. */
+ RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
+ token_buffer_size,
+ TOKEN_DEFAULT_GROW_SIZE);
+ token[token_index++] = character;
+ token[token_index++] = peek_char;
+ strcpy (token + token_index, ttok);
+ token_index += ttoklen;
+ FREE (ttok);
+ dollar_present = all_digit_token = 0;
+ goto next_character;
+ }
+ else
+ shell_ungetc (peek_char);
+ }
+#endif /* EXTENDED_GLOB */
/* If the delimiter character is not single quote, parse some of
the shell expansions that must be read as a single word. */
-#if defined (PROCESS_SUBSTITUTION)
- if (character == '$' || character == '<' || character == '>')
-#else
- if (character == '$')
-#endif /* !PROCESS_SUBSTITUTION */
+ if (shellexp (character))
{
peek_char = shell_getc (1);
/* $(...), <(...), >(...), $((...)), ${...}, and $[...] constructs */
- if (peek_char == '(' ||
+ if MBTEST(peek_char == '(' || \
((peek_char == '{' || peek_char == '[') && character == '$')) /* ) ] } */
{
if (peek_char == '{') /* } */
- ttok = parse_matched_pair (cd, '{', '}', &ttoklen, 0);
+ ttok = parse_matched_pair (cd, '{', '}', &ttoklen, P_FIRSTCLOSE);
else if (peek_char == '(') /* ) */
- ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0);
+ {
+ /* XXX - push and pop the `(' as a delimiter for use by
+ the command-oriented-history code. This way newlines
+ appearing in the $(...) string get added to the
+ history literally rather than causing a possibly-
+ incorrect `;' to be added. ) */
+ push_delimiter (dstack, peek_char);
+ ttok = parse_comsub (cd, '(', ')', &ttoklen, P_COMMAND);
+ pop_delimiter (dstack);
+ }
else
ttok = parse_matched_pair (cd, '[', ']', &ttoklen, 0);
if (ttok == &matched_pair_error)
token_index += ttoklen;
FREE (ttok);
dollar_present = 1;
- all_digits = 0;
+ all_digit_token = 0;
goto next_character;
}
/* This handles $'...' and $"..." new-style quoted strings. */
- else if (character == '$' && (peek_char == '\'' || peek_char == '"'))
+ else if MBTEST(character == '$' && (peek_char == '\'' || peek_char == '"'))
{
- ttok = parse_matched_pair (peek_char, peek_char, peek_char, &ttoklen, 0);
+ int first_line;
+
+ first_line = line_number;
+ push_delimiter (dstack, peek_char);
+ ttok = parse_matched_pair (peek_char, peek_char, peek_char,
+ &ttoklen,
+ (peek_char == '\'') ? P_ALLOWESC : 0);
+ pop_delimiter (dstack);
if (ttok == &matched_pair_error)
return -1;
if (peek_char == '\'')
- ttrans = ansiexpand (ttok, 0, ttoklen - 1, &ttranslen);
+ {
+ ttrans = ansiexpand (ttok, 0, ttoklen - 1, &ttranslen);
+ free (ttok);
+
+ /* Insert the single quotes and correctly quote any
+ embedded single quotes (allowed because P_ALLOWESC was
+ passed to parse_matched_pair). */
+ ttok = sh_single_quote (ttrans);
+ free (ttrans);
+ ttranslen = strlen (ttok);
+ ttrans = ttok;
+ }
else
- ttrans = localeexpand (ttok, 0, ttoklen - 1, &ttranslen);
- free (ttok);
+ {
+ /* Try to locale-expand the converted string. */
+ ttrans = localeexpand (ttok, 0, ttoklen - 1, first_line, &ttranslen);
+ free (ttok);
+
+ /* Add the double quotes back */
+ ttok = sh_mkdoublequoted (ttrans, ttranslen, 0);
+ free (ttrans);
+ ttranslen += 2;
+ ttrans = ttok;
+ }
+
RESIZE_MALLOCED_BUFFER (token, token_index, ttranslen + 2,
token_buffer_size,
TOKEN_DEFAULT_GROW_SIZE);
- token[token_index++] = peek_char;
strcpy (token + token_index, ttrans);
token_index += ttranslen;
- token[token_index++] = peek_char;
FREE (ttrans);
quoted = 1;
- all_digits = 0;
+ all_digit_token = 0;
+ goto next_character;
+ }
+ /* This could eventually be extended to recognize all of the
+ shell's single-character parameter expansions, and set flags.*/
+ else if MBTEST(character == '$' && peek_char == '$')
+ {
+ ttok = (char *)xmalloc (3);
+ ttok[0] = ttok[1] = '$';
+ ttok[2] = '\0';
+ RESIZE_MALLOCED_BUFFER (token, token_index, 3,
+ token_buffer_size,
+ TOKEN_DEFAULT_GROW_SIZE);
+ strcpy (token + token_index, ttok);
+ token_index += 2;
+ dollar_present = 1;
+ all_digit_token = 0;
+ FREE (ttok);
goto next_character;
}
else
}
#if defined (ARRAY_VARS)
+ /* Identify possible array subscript assignment; match [...]. If
+ parser_state&PST_COMPASSIGN, we need to parse [sub]=words treating
+ `sub' as if it were enclosed in double quotes. */
+ else if MBTEST(character == '[' && /* ] */
+ ((token_index > 0 && assignment_acceptable (last_read_token) && token_is_ident (token, token_index)) ||
+ (token_index == 0 && (parser_state&PST_COMPASSIGN))))
+ {
+ ttok = parse_matched_pair (cd, '[', ']', &ttoklen, 0);
+ if (ttok == &matched_pair_error)
+ return -1; /* Bail immediately. */
+ RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
+ token_buffer_size,
+ TOKEN_DEFAULT_GROW_SIZE);
+ token[token_index++] = character;
+ strcpy (token + token_index, ttok);
+ token_index += ttoklen;
+ FREE (ttok);
+ all_digit_token = 0;
+ goto next_character;
+ }
/* Identify possible compound array variable assignment. */
- else if (character == '=')
+ else if MBTEST(character == '=' && token_index > 0 && (assignment_acceptable (last_read_token) || (parser_state & PST_ASSIGNOK)) && token_is_assignment (token, token_index))
{
peek_char = shell_getc (1);
- if (peek_char == '(') /* ) */
+ if MBTEST(peek_char == '(') /* ) */
{
- ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0);
- if (ttok == &matched_pair_error)
- return -1; /* Bail immediately. */
- RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
+ ttok = parse_compound_assignment (&ttoklen);
+
+ RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 4,
token_buffer_size,
TOKEN_DEFAULT_GROW_SIZE);
- token[token_index++] = character;
- token[token_index++] = peek_char;
- strcpy (token + token_index, ttok);
- token_index += ttoklen;
+
+ token[token_index++] = '=';
+ token[token_index++] = '(';
+ if (ttok)
+ {
+ strcpy (token + token_index, ttok);
+ token_index += ttoklen;
+ }
+ token[token_index++] = ')';
FREE (ttok);
- all_digits = 0;
+ all_digit_token = 0;
+ compound_assignment = 1;
+#if 1
goto next_character;
+#else
+ goto got_token; /* ksh93 seems to do this */
+#endif
}
else
shell_ungetc (peek_char);
/* When not parsing a multi-character word construct, shell meta-
characters break words. */
- if (shellbreak (character))
+ if MBTEST(shellbreak (character))
{
shell_ungetc (character);
goto got_token;
got_character:
- all_digits &= digit (character);
- dollar_present |= character == '$';
-
if (character == CTLESC || character == CTLNUL)
token[token_index++] = CTLESC;
+ got_escaped_character:
+
+ all_digit_token &= DIGIT (character);
+ dollar_present |= character == '$';
+
token[token_index++] = character;
RESIZE_MALLOCED_BUFFER (token, token_index, 1, token_buffer_size,
TOKEN_DEFAULT_GROW_SIZE);
next_character:
- if (character == '\n' && interactive &&
- (bash_input.type == st_stdin || bash_input.type == st_stream))
+ if (character == '\n' && SHOULD_PROMPT ())
prompt_again ();
/* We want to remove quoted newlines (that is, a \<newline> pair)
is a `<', or a `&', or the character which ended this token is
a '>' or '<', then, and ONLY then, is this input token a NUMBER.
Otherwise, it is just a word, and should be returned as such. */
- if (all_digits && (character == '<' || character == '>' ||
- last_read_token == LESS_AND ||
+ if MBTEST(all_digit_token && (character == '<' || character == '>' || \
+ last_read_token == LESS_AND || \
last_read_token == GREATER_AND))
{
- yylval.number = atoi (token);
+ if (legal_number (token, &lvalue) && (int)lvalue == lvalue)
+ yylval.number = lvalue;
+ else
+ yylval.number = -1;
return (NUMBER);
}
/* Check for special case tokens. */
- result = special_case_tokens (token);
+ result = (last_shell_getc_is_singlebyte) ? special_case_tokens (token) : -1;
if (result >= 0)
return result;
/* Posix.2 does not allow reserved words to be aliased, so check for all
of them, including special cases, before expanding the current token
as an alias. */
- if (posixly_correct)
+ if MBTEST(posixly_correct)
CHECK_FOR_RESERVED_WORD (token);
/* Aliases are expanded iff EXPAND_ALIASES is non-zero, and quoting
/* If not in Posix.2 mode, check for reserved words after alias
expansion. */
- if (posixly_correct == 0)
+ if MBTEST(posixly_correct == 0)
#endif
CHECK_FOR_RESERVED_WORD (token);
the_word = (WORD_DESC *)xmalloc (sizeof (WORD_DESC));
- the_word->word = xmalloc (1 + token_index);
+ the_word->word = (char *)xmalloc (1 + token_index);
the_word->flags = 0;
strcpy (the_word->word, token);
if (dollar_present)
the_word->flags |= W_HASDOLLAR;
if (quoted)
- the_word->flags |= W_QUOTED;
+ the_word->flags |= W_QUOTED; /*(*/
+ if (compound_assignment && token[token_index-1] == ')')
+ the_word->flags |= W_COMPASSIGN;
/* A word is an assignment if it appears at the beginning of a
simple command, or after another assignment word. This is
context-dependent, so it cannot be handled in the grammar. */
- if (assignment (token))
+ if (assignment (token, (parser_state & PST_COMPASSIGN) != 0))
{
the_word->flags |= W_ASSIGNMENT;
/* Don't perform word splitting on assignment statements. */
- if (assignment_acceptable (last_read_token))
+ if (assignment_acceptable (last_read_token) || (parser_state & PST_COMPASSIGN) != 0)
the_word->flags |= W_NOSPLIT;
}
+ if (command_token_position (last_read_token))
+ {
+ struct builtin *b;
+ b = builtin_address_internal (token, 0);
+ if (b && (b->flags & ASSIGNMENT_BUILTIN))
+ parser_state |= PST_ASSIGNOK;
+ else if (STREQ (token, "eval") || STREQ (token, "let"))
+ parser_state |= PST_ASSIGNOK;
+ }
+
yylval.word = the_word;
result = ((the_word->flags & (W_ASSIGNMENT|W_NOSPLIT)) == (W_ASSIGNMENT|W_NOSPLIT))
? ASSIGNMENT_WORD : WORD;
- if (last_read_token == FUNCTION)
+ switch (last_read_token)
{
+ case FUNCTION:
parser_state |= PST_ALLOWOPNBRC;
function_dstart = line_number;
+ break;
+ case CASE:
+ case SELECT:
+ case FOR:
+ if (word_top < MAX_CASE_NEST)
+ word_top++;
+ word_lineno[word_top] = line_number;
+ break;
}
return (result);
}
-/* $'...' ANSI-C expand the portion of STRING between START and END and
- return the result. The result cannot be longer than the input string. */
-static char *
-ansiexpand (string, start, end, lenp)
- char *string;
- int start, end, *lenp;
-{
- char *temp, *t;
- int len, tlen;
-
- temp = xmalloc (end - start + 1);
- for (tlen = 0, len = start; len < end; )
- temp[tlen++] = string[len++];
- temp[tlen] = '\0';
-
- if (*temp)
- {
- t = ansicstr (temp, tlen, (int *)NULL);
- free (temp);
- if (lenp)
- *lenp = strlen (t);
- return (t);
- }
- else
- {
- if (lenp)
- *lenp = 0;
- return (temp);
- }
-}
-
-/* $"..." -- Translate the portion of STRING between START and END
- according to current locale using gettext (if available) and return
- the result. The caller will take care of leaving the quotes intact.
- The string will be left without the leading `$' by the caller.
- If translation is performed, the translated string will be double-quoted
- by the caller. The length of the translated string is returned in LENP,
- if non-null. */
-static char *
-localeexpand (string, start, end, lenp)
- char *string;
- int start, end, *lenp;
-{
- int len, tlen;
- char *temp, *t;
-
- temp = xmalloc (end - start + 1);
- for (tlen = 0, len = start; len < end; )
- temp[tlen++] = string[len++];
- temp[tlen] = '\0';
-
- /* If we're just dumping translatable strings, don't do anything. */
- if (dump_translatable_strings)
- {
- printf ("\"%s\"\n", temp);
- if (lenp)
- *lenp = tlen;
- return (temp);
- }
- else if (*temp)
- {
- t = localetrans (temp, tlen, &len);
- free (temp);
- if (lenp)
- *lenp = len;
- return (t);
- }
- else
- {
- if (lenp)
- *lenp = 0;
- return (temp);
- }
-}
-
-/* Return 1 if TOKEN is a token that after being read would allow
+/* Return 1 if TOKSYM is a token that after being read would allow
a reserved word to be seen, else 0. */
static int
-reserved_word_acceptable (token)
- int token;
+reserved_word_acceptable (toksym)
+ int toksym;
{
- if (token == '\n' || token == ';' || token == '(' || token == ')' ||
- token == '|' || token == '&' || token == '{' ||
- token == '}' || /* XXX */
- token == AND_AND ||
- token == BANG ||
- token == TIME || token == TIMEOPT ||
- token == DO ||
- token == ELIF ||
- token == ELSE ||
- token == FI ||
- token == IF ||
- token == OR_OR ||
- token == SEMI_SEMI ||
- token == THEN ||
- token == UNTIL ||
- token == WHILE ||
- token == DONE || /* XXX these two are experimental */
- token == ESAC ||
- token == 0)
- return (1);
- else
- return (0);
+ switch (toksym)
+ {
+ case '\n':
+ case ';':
+ case '(':
+ case ')':
+ case '|':
+ case '&':
+ case '{':
+ case '}': /* XXX */
+ case AND_AND:
+ case BANG:
+ case DO:
+ case DONE:
+ case ELIF:
+ case ELSE:
+ case ESAC:
+ case FI:
+ case IF:
+ case OR_OR:
+ case SEMI_SEMI:
+ case SEMI_AND:
+ case SEMI_SEMI_AND:
+ case THEN:
+ case TIME:
+ case TIMEOPT:
+ case COPROC:
+ case UNTIL:
+ case WHILE:
+ case 0:
+ return 1;
+ default:
+#if defined (COPROCESS_SUPPORT)
+ if (last_read_token == WORD && token_before_that == COPROC)
+ return 1;
+#endif
+ return 0;
+ }
}
-
+
/* Return the index of TOKEN in the alist of reserved words, or -1 if
TOKEN is not a shell reserved word. */
int
-find_reserved_word (token)
- char *token;
+find_reserved_word (tokstr)
+ char *tokstr;
{
int i;
for (i = 0; word_token_alist[i].word; i++)
- if (STREQ (token, word_token_alist[i].word))
+ if (STREQ (tokstr, word_token_alist[i].word))
return i;
return -1;
}
if (temp_prompt == 0)
{
- temp_prompt = xmalloc (1);
+ temp_prompt = (char *)xmalloc (1);
temp_prompt[0] = '\0';
}
/* A list of tokens which can be followed by newlines, but not by
semi-colons. When concatenating multiple lines of history, the
newline separator for such tokens is replaced with a space. */
-static int no_semi_successors[] = {
+static const int no_semi_successors[] = {
'\n', '{', '(', ')', ';', '&', '|',
- CASE, DO, ELSE, IF, SEMI_SEMI, THEN, UNTIL, WHILE, AND_AND, OR_OR, IN,
+ CASE, DO, ELSE, IF, SEMI_SEMI, SEMI_AND, SEMI_SEMI_AND, THEN, UNTIL,
+ WHILE, AND_AND, OR_OR, IN,
0
};
if (dstack.delimiter_depth != 0)
return ("\n");
-
+
+ /* We look for current_command_line_count == 2 because we are looking to
+ add the first line of the body of the here document (the second line
+ of the command). */
+ if (parser_state & PST_HEREDOC)
+ return (current_command_line_count == 2 ? "\n" : "");
+
/* First, handle some special cases. */
/*(*/
/* If we just read `()', assume it's a function definition, and don't
/* This does not work for subshells inside case statement
command lists. It's a suboptimal solution. */
else if (parser_state & PST_CASESTMT) /* case statement pattern */
- return " ";
+ return " ";
else
- return "; "; /* (...) subshell */
+ return "; "; /* (...) subshell */
+ }
+ else if (token_before_that == WORD && two_tokens_ago == FUNCTION)
+ return " "; /* function def using `function name' without `()' */
+
+ else if (token_before_that == WORD && two_tokens_ago == FOR)
+ {
+ /* Tricky. `for i\nin ...' should not have a semicolon, but
+ `for i\ndo ...' should. We do what we can. */
+ for (i = shell_input_line_index; whitespace (shell_input_line[i]); i++)
+ ;
+ if (shell_input_line[i] && shell_input_line[i] == 'i' && shell_input_line[i+1] == 'n')
+ return " ";
+ return ";";
}
+ else if (two_tokens_ago == CASE && token_before_that == WORD && (parser_state & PST_CASESTMT))
+ return " ";
for (i = 0; no_semi_successors[i]; i++)
{
{
char *temp_prompt;
- if (!interactive) /* XXX */
+ if (interactive == 0 || expanding_alias()) /* XXX */
return;
ps1_prompt = get_string_value ("PS1");
if (temp_prompt == 0)
{
- temp_prompt = xmalloc (1);
+ temp_prompt = (char *)xmalloc (1);
temp_prompt[0] = '\0';
}
}
}
+int
+get_current_prompt_level ()
+{
+ return ((current_prompt_string && current_prompt_string == ps2_prompt) ? 2 : 1);
+}
+
+void
+set_current_prompt_level (x)
+ int x;
+{
+ prompt_string_pointer = (x == 2) ? &ps2_prompt : &ps1_prompt;
+ current_prompt_string = *prompt_string_pointer;
+}
+
static void
print_prompt ()
{
may contain special characters which are decoded as follows:
\a bell (ascii 07)
- \e escape (ascii 033)
\d the date in Day Mon Date format
+ \e escape (ascii 033)
\h the hostname up to the first `.'
\H the hostname
+ \j the number of active jobs
+ \l the basename of the shell's tty device name
\n CRLF
+ \r CR
\s the name of the shell
\t the time in 24-hour hh:mm:ss format
\T the time in 12-hour hh:mm:ss format
- \@ the time in 12-hour am/pm format
+ \@ the time in 12-hour hh:mm am/pm format
+ \A the time in 24-hour hh:mm format
+ \D{fmt} the result of passing FMT to strftime(3)
+ \u your username
\v the version of bash (e.g., 2.00)
\V the release of bash, version + patchlevel (e.g., 2.00.0)
\w the current working directory
\W the last element of $PWD
- \u your username
- \# the command number of this command
\! the history number of this command
+ \# the command number of this command
\$ a $ or a # if you are root
\nnn character code nnn in octal
\\ a backslash
\[ begin a sequence of non-printing chars
\] end a sequence of non-printing chars
*/
-#define PROMPT_GROWTH 50
+#define PROMPT_GROWTH 48
char *
decode_prompt_string (string)
char *string;
WORD_LIST *list;
char *result, *t;
struct dstack save_dstack;
+ int last_exit_value;
#if defined (PROMPT_STRING_DECODE)
int result_size, result_index;
- int c, n;
+ int c, n, i;
char *temp, octal_string[4];
+ struct tm *tm;
time_t the_time;
+ char timebuf[128];
+ char *timefmt;
- result = xmalloc (result_size = PROMPT_GROWTH);
+ result = (char *)xmalloc (result_size = PROMPT_GROWTH);
result[result_index = 0] = 0;
temp = (char *)NULL;
octal_string[3] = '\0';
n = read_octal (octal_string);
- temp = xmalloc (3);
+ temp = (char *)xmalloc (3);
if (n == CTLESC || n == CTLNUL)
{
- string += 3;
temp[0] = CTLESC;
temp[1] = n;
temp[2] = '\0';
}
else
{
- string += 3;
temp[0] = n;
temp[1] = '\0';
}
- c = 0;
+ for (c = 0; n != -1 && c < 3 && ISOCTAL (*string); c++)
+ string++;
+
+ c = 0; /* tested at add_string: */
goto add_string;
- case 't':
case 'd':
+ case 't':
case 'T':
case '@':
+ case 'A':
/* Make the current time/date into a string. */
- the_time = time (0);
- temp = ctime (&the_time);
+ (void) time (&the_time);
+ tm = localtime (&the_time);
+
+ if (c == 'd')
+ n = strftime (timebuf, sizeof (timebuf), "%a %b %d", tm);
+ else if (c == 't')
+ n = strftime (timebuf, sizeof (timebuf), "%H:%M:%S", tm);
+ else if (c == 'T')
+ n = strftime (timebuf, sizeof (timebuf), "%I:%M:%S", tm);
+ else if (c == '@')
+ n = strftime (timebuf, sizeof (timebuf), "%I:%M %p", tm);
+ else if (c == 'A')
+ n = strftime (timebuf, sizeof (timebuf), "%H:%M", tm);
+
+ if (n == 0)
+ timebuf[0] = '\0';
+ else
+ timebuf[sizeof(timebuf) - 1] = '\0';
- temp = (c != 'd') ? savestring (temp + 11) : savestring (temp);
- temp[(c != 'd') ? 8 : 10] = '\0';
+ temp = savestring (timebuf);
+ goto add_string;
- /* quick and dirty conversion to 12-hour time */
- if (c == 'T' || c == '@')
+ case 'D': /* strftime format */
+ if (string[1] != '{') /* } */
+ goto not_escape;
+
+ (void) time (&the_time);
+ tm = localtime (&the_time);
+ string += 2; /* skip { */
+ timefmt = xmalloc (strlen (string) + 3);
+ for (t = timefmt; *string && *string != '}'; )
+ *t++ = *string++;
+ *t = '\0';
+ c = *string; /* tested at add_string */
+ if (timefmt[0] == '\0')
{
- if (c == '@')
- {
- temp[5] = 'a'; /* am/pm format */
- temp[6] = 'm';
- temp[7] = '\0';
- }
- c = temp[2];
- temp[2] = '\0';
- n = atoi (temp);
- temp[2] = c;
- n -= 12;
- if (n > 0)
- {
- temp[0] = (n / 10) + '0';
- temp[1] = (n % 10) + '0';
- }
- if (n >= 0 && temp[5] == 'a')
- temp[5] = 'p';
+ timefmt[0] = '%';
+ timefmt[1] = 'X'; /* locale-specific current time */
+ timefmt[2] = '\0';
}
- goto add_string;
+ n = strftime (timebuf, sizeof (timebuf), timefmt, tm);
+ free (timefmt);
+ if (n == 0)
+ timebuf[0] = '\0';
+ else
+ timebuf[sizeof(timebuf) - 1] = '\0';
+
+ if (promptvars || posixly_correct)
+ /* Make sure that expand_prompt_string is called with a
+ second argument of Q_DOUBLE_QUOTES if we use this
+ function here. */
+ temp = sh_backslash_quote_for_double_quotes (timebuf);
+ else
+ temp = savestring (timebuf);
+ goto add_string;
+
case 'n':
- temp = xmalloc (3);
+ temp = (char *)xmalloc (3);
temp[0] = no_line_editing ? '\n' : '\r';
temp[1] = no_line_editing ? '\0' : '\n';
temp[2] = '\0';
case 'v':
case 'V':
- temp = xmalloc (8);
+ temp = (char *)xmalloc (16);
if (c == 'v')
strcpy (temp, dist_version);
else
{
/* Use the value of PWD because it is much more efficient. */
char t_string[PATH_MAX];
+ int tlen;
temp = get_string_value ("PWD");
{
if (getcwd (t_string, sizeof(t_string)) == 0)
{
- t_string[0] = '.';
- t_string[1] = '\0';
+ t_string[0] = '.';
+ tlen = 1;
}
+ else
+ tlen = strlen (t_string);
}
else
- strcpy (t_string, temp);
+ {
+ tlen = sizeof (t_string) - 1;
+ strncpy (t_string, temp, tlen);
+ }
+ t_string[tlen] = '\0';
- if (c == 'W')
+#define ROOT_PATH(x) ((x)[0] == '/' && (x)[1] == 0)
+#define DOUBLE_SLASH_ROOT(x) ((x)[0] == '/' && (x)[1] == '/' && (x)[2] == 0)
+ /* Abbreviate \W as ~ if $PWD == $HOME */
+ if (c == 'W' && (((t = get_string_value ("HOME")) == 0) || STREQ (t, t_string) == 0))
{
- t = strrchr (t_string, '/');
- if (t && t != t_string)
- strcpy (t_string, t + 1);
+ if (ROOT_PATH (t_string) == 0 && DOUBLE_SLASH_ROOT (t_string) == 0)
+ {
+ t = strrchr (t_string, '/');
+ if (t)
+ strcpy (t_string, t + 1);
+ }
}
+#undef ROOT_PATH
+#undef DOUBLE_SLASH_ROOT
else
+ /* polite_directory_format is guaranteed to return a string
+ no longer than PATH_MAX - 1 characters. */
strcpy (t_string, polite_directory_format (t_string));
+ temp = trim_pathname (t_string, PATH_MAX - 1);
/* If we're going to be expanding the prompt string later,
quote the directory name. */
if (promptvars || posixly_correct)
- temp = backslash_quote (t_string);
+ /* Make sure that expand_prompt_string is called with a
+ second argument of Q_DOUBLE_QUOTES if we use this
+ function here. */
+ temp = sh_backslash_quote_for_double_quotes (t_string);
else
temp = savestring (t_string);
}
case 'u':
+ if (current_user.user_name == 0)
+ get_current_user_info ();
temp = savestring (current_user.user_name);
goto add_string;
goto add_string;
case '$':
- temp = xmalloc (2);
- temp[0] = current_user.euid == 0 ? '#' : '$';
- temp[1] = '\0';
+ t = temp = (char *)xmalloc (3);
+ if ((promptvars || posixly_correct) && (current_user.euid != 0))
+ *t++ = '\\';
+ *t++ = current_user.euid == 0 ? '#' : '$';
+ *t = '\0';
+ goto add_string;
+
+ case 'j':
+ temp = itos (count_all_jobs ());
+ goto add_string;
+
+ case 'l':
+#if defined (HAVE_TTYNAME)
+ temp = (char *)ttyname (fileno (stdin));
+ t = temp ? base_pathname (temp) : "tty";
+ temp = savestring (t);
+#else
+ temp = savestring ("tty");
+#endif /* !HAVE_TTYNAME */
goto add_string;
#if defined (READLINE)
case '[':
case ']':
- temp = xmalloc (3);
- temp[0] = '\001';
- temp[1] = (c == '[') ? RL_PROMPT_START_IGNORE : RL_PROMPT_END_IGNORE;
- temp[2] = '\0';
+ if (no_line_editing)
+ {
+ string++;
+ break;
+ }
+ temp = (char *)xmalloc (3);
+ n = (c == '[') ? RL_PROMPT_START_IGNORE : RL_PROMPT_END_IGNORE;
+ i = 0;
+ if (n == CTLESC || n == CTLNUL)
+ temp[i++] = CTLESC;
+ temp[i++] = n;
+ temp[i] = '\0';
goto add_string;
#endif /* READLINE */
case '\\':
- temp = xmalloc (2);
- temp[0] = c;
- temp[1] = '\0';
- goto add_string;
-
case 'a':
case 'e':
- temp = xmalloc (2);
- temp[0] = (c == 'a') ? '\07' : '\033';
+ case 'r':
+ temp = (char *)xmalloc (2);
+ if (c == 'a')
+ temp[0] = '\07';
+ else if (c == 'e')
+ temp[0] = '\033';
+ else if (c == 'r')
+ temp[0] = '\r';
+ else /* (c == '\\') */
+ temp[0] = c;
temp[1] = '\0';
goto add_string;
default:
- temp = xmalloc (3);
+not_escape:
+ temp = (char *)xmalloc (3);
temp[0] = '\\';
temp[1] = c;
temp[2] = '\0';
the prompt string. */
if (promptvars || posixly_correct)
{
- list = expand_string_unsplit (result, Q_DOUBLE_QUOTES);
+ last_exit_value = last_command_exit_value;
+ list = expand_prompt_string (result, Q_DOUBLE_QUOTES, 0);
free (result);
result = string_list (list);
dispose_words (list);
+ last_command_exit_value = last_exit_value;
}
else
{
return (result);
}
+/************************************************
+ * *
+ * ERROR HANDLING *
+ * *
+ ************************************************/
+
/* Report a syntax error, and restart the parser. Call here for fatal
errors. */
int
-yyerror ()
+yyerror (msg)
+ const char *msg;
{
report_syntax_error ((char *)NULL);
reset_parser ();
return (0);
}
+static char *
+error_token_from_token (tok)
+ int tok;
+{
+ char *t;
+
+ if (t = find_token_in_alist (tok, word_token_alist, 0))
+ return t;
+
+ if (t = find_token_in_alist (tok, other_token_alist, 0))
+ return t;
+
+ t = (char *)NULL;
+ /* This stuff is dicy and needs closer inspection */
+ switch (current_token)
+ {
+ case WORD:
+ case ASSIGNMENT_WORD:
+ if (yylval.word)
+ t = savestring (yylval.word->word);
+ break;
+ case NUMBER:
+ t = itos (yylval.number);
+ break;
+ case ARITH_CMD:
+ if (yylval.word_list)
+ t = string_list (yylval.word_list);
+ break;
+ case ARITH_FOR_EXPRS:
+ if (yylval.word_list)
+ t = string_list_internal (yylval.word_list, " ; ");
+ break;
+ case COND_CMD:
+ t = (char *)NULL; /* punt */
+ break;
+ }
+
+ return t;
+}
+
+static char *
+error_token_from_text ()
+{
+ char *msg, *t;
+ int token_end, i;
+
+ t = shell_input_line;
+ i = shell_input_line_index;
+ token_end = 0;
+ msg = (char *)NULL;
+
+ if (i && t[i] == '\0')
+ i--;
+
+ while (i && (whitespace (t[i]) || t[i] == '\n'))
+ i--;
+
+ if (i)
+ token_end = i + 1;
+
+ while (i && (member (t[i], " \n\t;|&") == 0))
+ i--;
+
+ while (i != token_end && (whitespace (t[i]) || t[i] == '\n'))
+ i++;
+
+ /* Return our idea of the offending token. */
+ if (token_end || (i == 0 && token_end == 0))
+ {
+ if (token_end)
+ msg = substring (t, i, token_end);
+ else /* one-character token */
+ {
+ msg = (char *)xmalloc (2);
+ msg[0] = t[i];
+ msg[1] = '\0';
+ }
+ }
+
+ return (msg);
+}
+
+static void
+print_offending_line ()
+{
+ char *msg;
+ int token_end;
+
+ msg = savestring (shell_input_line);
+ token_end = strlen (msg);
+ while (token_end && msg[token_end - 1] == '\n')
+ msg[--token_end] = '\0';
+
+ parser_error (line_number, "`%s'", msg);
+ free (msg);
+}
+
/* Report a syntax error with line numbers, etc.
Call here for recoverable errors. If you have a message to print,
then place it in MESSAGE, otherwise pass NULL and this will figure
report_syntax_error (message)
char *message;
{
- char *msg, *t;
- int token_end, i;
- char msg2[2];
+ char *msg;
if (message)
{
}
/* If the line of input we're reading is not null, try to find the
- objectionable token. */
- if (shell_input_line && *shell_input_line)
+ objectionable token. First, try to figure out what token the
+ parser's complaining about by looking at current_token. */
+ if (current_token != 0 && EOF_Reached == 0 && (msg = error_token_from_token (current_token)))
{
- t = shell_input_line;
- i = shell_input_line_index;
- token_end = 0;
-
- if (i && t[i] == '\0')
- i--;
+ parser_error (line_number, _("syntax error near unexpected token `%s'"), msg);
+ free (msg);
- while (i && (whitespace (t[i]) || t[i] == '\n'))
- i--;
-
- if (i)
- token_end = i + 1;
-
- while (i && (member (t[i], " \n\t;|&") == 0))
- i--;
+ if (interactive == 0)
+ print_offending_line ();
- while (i != token_end && (whitespace (t[i]) || t[i] == '\n'))
- i++;
+ last_command_exit_value = EX_USAGE;
+ return;
+ }
- /* Print the offending token. */
- if (token_end || (i == 0 && token_end == 0))
+ /* If looking at the current token doesn't prove fruitful, try to find the
+ offending token by analyzing the text of the input line near the current
+ input line index and report what we find. */
+ if (shell_input_line && *shell_input_line)
+ {
+ msg = error_token_from_text ();
+ if (msg)
{
- if (token_end)
- {
- msg = xmalloc (1 + (token_end - i));
- strncpy (msg, t + i, token_end - i);
- msg[token_end - i] = '\0';
- }
- else /* one-character token */
- {
- msg2[0] = t[i];
- msg2[1] = '\0';
- msg = msg2;
- }
-
- parser_error (line_number, "syntax error near unexpected token `%s'", msg);
-
- if (msg != msg2)
- free (msg);
+ parser_error (line_number, _("syntax error near `%s'"), msg);
+ free (msg);
}
/* If not interactive, print the line containing the error. */
if (interactive == 0)
- {
- msg = savestring (shell_input_line);
- token_end = strlen (msg);
- while (token_end && msg[token_end - 1] == '\n')
- msg[--token_end] = '\0';
-
- parser_error (line_number, "`%s'", msg);
- free (msg);
- }
+ print_offending_line ();
}
else
{
- msg = EOF_Reached ? "syntax error: unexpected end of file" : "syntax error";
+ msg = EOF_Reached ? _("syntax error: unexpected end of file") : _("syntax error");
parser_error (line_number, "%s", msg);
/* When the shell is interactive, this file uses EOF_Reached
only for error reporting. Other mechanisms are used to
if (interactive && EOF_Reached)
EOF_Reached = 0;
}
+
last_command_exit_value = EX_USAGE;
}
created during parsing. In the case of error, we want to return
allocated objects to the memory pool. In the case of no error, we want
to throw away the information about where the allocated objects live.
- (dispose_command () will actually free the command. */
+ (dispose_command () will actually free the command.) */
static void
discard_parser_constructs (error_p)
int error_p;
{
}
+/************************************************
+ * *
+ * EOF HANDLING *
+ * *
+ ************************************************/
+
/* Do that silly `type "bye" to exit' stuff. You know, "ignoreeof". */
/* A flag denoting whether or not ignoreeof is set. */
{
if (eof_encountered < eof_encountered_limit)
{
- fprintf (stderr, "Use \"%s\" to leave the shell.\n",
+ fprintf (stderr, _("Use \"%s\" to leave the shell.\n"),
login_shell ? "logout" : "exit");
eof_encountered++;
+ /* Reset the parsing state. */
+ last_read_token = current_token = '\n';
/* Reset the prompt string to be $PS1. */
prompt_string_pointer = (char **)NULL;
prompt_again ();
- last_read_token = current_token = '\n';
return;
}
}
EOF_Reached = 1;
}
}
+
+/************************************************
+ * *
+ * STRING PARSING FUNCTIONS *
+ * *
+ ************************************************/
+
+/* It's very important that these two functions treat the characters
+ between ( and ) identically. */
+
+static WORD_LIST parse_string_error;
+
+/* Take a string and run it through the shell parser, returning the
+ resultant word list. Used by compound array assignment. */
+WORD_LIST *
+parse_string_to_word_list (s, flags, whom)
+ char *s;
+ int flags;
+ const char *whom;
+{
+ WORD_LIST *wl;
+ int tok, orig_current_token, orig_line_number, orig_input_terminator;
+ int orig_line_count;
+ int old_echo_input, old_expand_aliases;
+#if defined (HISTORY)
+ int old_remember_on_history, old_history_expansion_inhibited;
+#endif
+
+#if defined (HISTORY)
+ old_remember_on_history = remember_on_history;
+# if defined (BANG_HISTORY)
+ old_history_expansion_inhibited = history_expansion_inhibited;
+# endif
+ bash_history_disable ();
+#endif
+
+ orig_line_number = line_number;
+ orig_line_count = current_command_line_count;
+ orig_input_terminator = shell_input_line_terminator;
+ old_echo_input = echo_input_at_read;
+ old_expand_aliases = expand_aliases;
+
+ push_stream (1);
+ last_read_token = WORD; /* WORD to allow reserved words here */
+ current_command_line_count = 0;
+ echo_input_at_read = expand_aliases = 0;
+
+ with_input_from_string (s, whom);
+ wl = (WORD_LIST *)NULL;
+
+ if (flags & 1)
+ parser_state |= PST_COMPASSIGN|PST_REPARSE;
+
+ while ((tok = read_token (READ)) != yacc_EOF)
+ {
+ if (tok == '\n' && *bash_input.location.string == '\0')
+ break;
+ if (tok == '\n') /* Allow newlines in compound assignments */
+ continue;
+ if (tok != WORD && tok != ASSIGNMENT_WORD)
+ {
+ line_number = orig_line_number + line_number - 1;
+ orig_current_token = current_token;
+ current_token = tok;
+ yyerror (NULL); /* does the right thing */
+ current_token = orig_current_token;
+ if (wl)
+ dispose_words (wl);
+ wl = &parse_string_error;
+ break;
+ }
+ wl = make_word_list (yylval.word, wl);
+ }
+
+ last_read_token = '\n';
+ pop_stream ();
+
+#if defined (HISTORY)
+ remember_on_history = old_remember_on_history;
+# if defined (BANG_HISTORY)
+ history_expansion_inhibited = old_history_expansion_inhibited;
+# endif /* BANG_HISTORY */
+#endif /* HISTORY */
+
+ echo_input_at_read = old_echo_input;
+ expand_aliases = old_expand_aliases;
+
+ current_command_line_count = orig_line_count;
+ shell_input_line_terminator = orig_input_terminator;
+
+ if (flags & 1)
+ parser_state &= ~(PST_COMPASSIGN|PST_REPARSE);
+
+ if (wl == &parse_string_error)
+ {
+ last_command_exit_value = EXECUTION_FAILURE;
+ if (interactive_shell == 0 && posixly_correct)
+ jump_to_top_level (FORCE_EOF);
+ else
+ jump_to_top_level (DISCARD);
+ }
+
+ return (REVERSE_LIST (wl, WORD_LIST *));
+}
+
+static char *
+parse_compound_assignment (retlenp)
+ int *retlenp;
+{
+ WORD_LIST *wl, *rl;
+ int tok, orig_line_number, orig_token_size, orig_last_token, assignok;
+ char *saved_token, *ret;
+
+ saved_token = token;
+ orig_token_size = token_buffer_size;
+ orig_line_number = line_number;
+ orig_last_token = last_read_token;
+
+ last_read_token = WORD; /* WORD to allow reserved words here */
+
+ token = (char *)NULL;
+ token_buffer_size = 0;
+
+ assignok = parser_state&PST_ASSIGNOK; /* XXX */
+
+ wl = (WORD_LIST *)NULL; /* ( */
+ parser_state |= PST_COMPASSIGN;
+
+ while ((tok = read_token (READ)) != ')')
+ {
+ if (tok == '\n') /* Allow newlines in compound assignments */
+ {
+ if (SHOULD_PROMPT ())
+ prompt_again ();
+ continue;
+ }
+ if (tok != WORD && tok != ASSIGNMENT_WORD)
+ {
+ current_token = tok; /* for error reporting */
+ if (tok == yacc_EOF) /* ( */
+ parser_error (orig_line_number, _("unexpected EOF while looking for matching `)'"));
+ else
+ yyerror(NULL); /* does the right thing */
+ if (wl)
+ dispose_words (wl);
+ wl = &parse_string_error;
+ break;
+ }
+ wl = make_word_list (yylval.word, wl);
+ }
+
+ FREE (token);
+ token = saved_token;
+ token_buffer_size = orig_token_size;
+
+ parser_state &= ~PST_COMPASSIGN;
+
+ if (wl == &parse_string_error)
+ {
+ last_command_exit_value = EXECUTION_FAILURE;
+ last_read_token = '\n'; /* XXX */
+ if (interactive_shell == 0 && posixly_correct)
+ jump_to_top_level (FORCE_EOF);
+ else
+ jump_to_top_level (DISCARD);
+ }
+
+ last_read_token = orig_last_token; /* XXX - was WORD? */
+
+ if (wl)
+ {
+ rl = REVERSE_LIST (wl, WORD_LIST *);
+ ret = string_list (rl);
+ dispose_words (rl);
+ }
+ else
+ ret = (char *)NULL;
+
+ if (retlenp)
+ *retlenp = (ret && *ret) ? strlen (ret) : 0;
+
+ if (assignok)
+ parser_state |= PST_ASSIGNOK;
+
+ return ret;
+}
+
+/************************************************
+ * *
+ * SAVING AND RESTORING PARTIAL PARSE STATE *
+ * *
+ ************************************************/
+
+sh_parser_state_t *
+save_parser_state (ps)
+ sh_parser_state_t *ps;
+{
+#if defined (ARRAY_VARS)
+ SHELL_VAR *v;
+#endif
+
+ if (ps == 0)
+ ps = (sh_parser_state_t *)xmalloc (sizeof (sh_parser_state_t));
+ if (ps == 0)
+ return ((sh_parser_state_t *)NULL);
+
+ ps->parser_state = parser_state;
+ ps->token_state = save_token_state ();
+
+ ps->input_line_terminator = shell_input_line_terminator;
+ ps->eof_encountered = eof_encountered;
+
+ ps->current_command_line_count = current_command_line_count;
+
+#if defined (HISTORY)
+ ps->remember_on_history = remember_on_history;
+# if defined (BANG_HISTORY)
+ ps->history_expansion_inhibited = history_expansion_inhibited;
+# endif
+#endif
+
+ ps->last_command_exit_value = last_command_exit_value;
+#if defined (ARRAY_VARS)
+ v = find_variable ("PIPESTATUS");
+ if (v && array_p (v) && array_cell (v))
+ ps->pipestatus = array_copy (array_cell (v));
+ else
+ ps->pipestatus = (ARRAY *)NULL;
+#endif
+
+ ps->last_shell_builtin = last_shell_builtin;
+ ps->this_shell_builtin = this_shell_builtin;
+
+ ps->expand_aliases = expand_aliases;
+ ps->echo_input_at_read = echo_input_at_read;
+
+ return (ps);
+}
+
+void
+restore_parser_state (ps)
+ sh_parser_state_t *ps;
+{
+#if defined (ARRAY_VARS)
+ SHELL_VAR *v;
+#endif
+
+ if (ps == 0)
+ return;
+
+ parser_state = ps->parser_state;
+ if (ps->token_state)
+ {
+ restore_token_state (ps->token_state);
+ free (ps->token_state);
+ }
+
+ shell_input_line_terminator = ps->input_line_terminator;
+ eof_encountered = ps->eof_encountered;
+
+ current_command_line_count = ps->current_command_line_count;
+
+#if defined (HISTORY)
+ remember_on_history = ps->remember_on_history;
+# if defined (BANG_HISTORY)
+ history_expansion_inhibited = ps->history_expansion_inhibited;
+# endif
+#endif
+
+ last_command_exit_value = ps->last_command_exit_value;
+#if defined (ARRAY_VARS)
+ v = find_variable ("PIPESTATUS");
+ if (v && array_p (v) && array_cell (v))
+ {
+ array_dispose (array_cell (v));
+ var_setarray (v, ps->pipestatus);
+ }
+#endif
+
+ last_shell_builtin = ps->last_shell_builtin;
+ this_shell_builtin = ps->this_shell_builtin;
+
+ expand_aliases = ps->expand_aliases;
+ echo_input_at_read = ps->echo_input_at_read;
+}
+
+/************************************************
+ * *
+ * MULTIBYTE CHARACTER HANDLING *
+ * *
+ ************************************************/
+
+#if defined (HANDLE_MULTIBYTE)
+static void
+set_line_mbstate ()
+{
+ int i, previ, len, c;
+ mbstate_t mbs, prevs;
+ size_t mbclen;
+
+ if (shell_input_line == NULL)
+ return;
+ len = strlen (shell_input_line); /* XXX - shell_input_line_len ? */
+ FREE (shell_input_line_property);
+ shell_input_line_property = (char *)xmalloc (len + 1);
+
+ memset (&prevs, '\0', sizeof (mbstate_t));
+ for (i = previ = 0; i < len; i++)
+ {
+ mbs = prevs;
+
+ c = shell_input_line[i];
+ if (c == EOF)
+ {
+ int j;
+ for (j = i; j < len; j++)
+ shell_input_line_property[j] = 1;
+ break;
+ }
+
+ mbclen = mbrlen (shell_input_line + previ, i - previ + 1, &mbs);
+ if (mbclen == 1 || mbclen == (size_t)-1)
+ {
+ mbclen = 1;
+ previ = i + 1;
+ }
+ else if (mbclen == (size_t)-2)
+ mbclen = 0;
+ else if (mbclen > 1)
+ {
+ mbclen = 0;
+ previ = i + 1;
+ prevs = mbs;
+ }
+ else
+ {
+ /* XXX - what to do if mbrlen returns 0? (null wide character) */
+ int j;
+ for (j = i; j < len; j++)
+ shell_input_line_property[j] = 1;
+ break;
+ }
+
+ shell_input_line_property[i] = mbclen;
+ }
+}
+#endif /* HANDLE_MULTIBYTE */
+
projects / platform / upstream / bash.git / blobdiff